Are necessary headers #included prior to the lines in question?
The functions calls shouldn't have the [] part.
Do your headings have the curly-brace part?

Your code may be long, but you've...

My assistance has been subpar tonight. Try this:
void loadFileToArray (string namesArray[], double gradesArray[][4], int &numberOfStudents)
{
string filename;
ifstream inputDataStream;

...

Ah! Separate lines for the names and the grades! I stand corrected. My crystal ball file looked like this:
5
foo 95 84 72 87
bar 91 77 82 63
baz 75 63 66 42
qux 50 49 33 58
moo 92 95 97 91
noo...

I don't have this file or some other one that apparently works for you. From what I was tinkering with, I would be surprised with it having ever worked correctly. And since I haven't seen the input...

You've got nested loop issues.
After you get the line, the line is got. Reading "the rest of the line" will be problematic.
You should check for success when you attempt to read from the file....

I have no idea what you are entering to the program. Any hints?

It sounds like you may be confused as to how an array/C-style string is passed to a function in C and C++. In the example, the array for a C-style string str is declared.
/* strcat example */...

Keep track of the index of the highest value while taking input. Initialize to the first element:
int hi = 0;
When you find a new highest value, capture the index:
if ( votes[i] >...

Really? This isn't reading all of the data into element zero:
int numCan = 0;
int totvote = 0;
// ...
for ( i = 1; i <=5; i++ )
{
inFile >> candidates[numCan] >>...

First, get the input right. Then yes, adding is pretty simple.

Maybe if both existed and they were used in a way that had meaning, like i (kinda).

The difftime (http://web.archive.org/web/20050207005628/http://dev.unicals.com/papers/c89-draft.html#4.12.2.2) function returns the difference expressed in seconds as a double.

Read input, then print it?

You seem to be using a lousy code editor and have "fancy quotes" instead of the plain variety. After that you'll get more syntax errors to clean up, like this
int calc_bonus(int sales){
You need to...

That happens to be true for the garden variety PC of today, but it is not true as a generic statement.

#include <iostream>
#include <fstream>
#include <cstdlib>

int main()
{
std::ifstream file("reg.txt");
char text[80];
while ( file.getline(text, sizeof text) )
{

Use integers.

http://groups.google.com/group/comp.lang.c/browse_thread/thread/2aaf5360b08c89a9/1000b1f7fb33ea53?ie=UTF-8&q=float+promoted+double+function+group%3Acomp.lang.c&pli=1

for (int i=1;i<=8;i++)Don't you mean this?for (int i=0;i<8;i++)

I think this thread hits on it:...

#include <iostream>
#include <cmath>
using namespace std;

int main()
{
cout << "RAND_MAX = " << RAND_MAX << "\n";
return 0;
}

I don't think you even want the array, but instead are after this?
inFile.open(file);

Match your prototypes with function signatures.

You can't pass an array by value ("the whole array"). When you "pass an array", you instead pass a pointer to the first element. What I believe you are doing is writing to a random memory location...

Do you know why you're trying to use an array of pointers to char instead of an array of char?
main(){

const int max_chars =100;
int length= 0;

char* letters[max_chars + 1];

...

Lose the semicolon:
#define CAPACITY 128;

[edit]Avoid expressions like this:
i=(i++)%CAPACITY
http://c-faq.com/expr/ieqiplusplus.html

Another way would be to write this as a function. If any character does not match, you can break the loop early and return a value indicating the "strings" do not match. If all characters do compare...

Another way of reading "7 times per line" is "output a newline every 7 times". You could do this with a separate counter (in the same loop though!) that counts to 7, outputs a newline and then is...

time is a reserved identifier.

Huh?

If you're trying to open the file for input, you use this bit here:
ifstream inputFile;

Open the file and read it?

How about a final else?

And don't use the comma here:
else if (numtick >100,000)

Related:
http://parashift.com/c++-faq-lite/input-output.html#faq-15.4

Well, choose your poison: multiple passes of the same file, or a single read with a buffer. Both are relatively simple, I'd recommend just examining what's there. Experiment a bit. Learning to code...

I suppose you could read the file to count the lines and then back up and only print the last 10.

Why the extra condition now?

Why don't you give the coding a shot first?

I'd just read all lines of the file into a circular buffer with 10 strings, each containing a line. When you get to the end of the file, you will have the last 10 lines stored.
#include <iostream>...

Well, if you don't get an integer because the user didn't enter a valid one, then "(x>0)" makes no sense either. You can do it your way by recognizing input failure and cleaning up the input stream....

I think the basics are here:
http://www.daniweb.com/tutorials/tutorial71858.html

My usual advice is to always read all user input as a string. If you want a numeric value, attempt to perform a conversion. If the conversion fails, issue a message or something; otherwise you...

You're going to return from main in one of two places:
int main ()
{
int number;
int counter = 0;
int flags = 1;
bool flag_none = true;
bool fag_yes = false;

cout << "Enter a number,...

The following code is unreachable:
if (counter < 7 == true)
{
cout << "Number " << counter << " is between 10 and 500" << endl;
cout << "Number " << counter << " is not flagged. " << endl;
}...