I am just preparing to take a quiz and he said some examples will be kind of like this and I was just tryin to get some input on if these answers I have are the right ones..

he said just do what the statement says, no further work, just little snippets;

1. Output the value of the variable, x, in a field of 10 spaces

cout<< setw(10) << x;

2. Read 2 float values from a stream, inFile, into variables x & y

I'm not sure how to write this one...

3. Increase the value of variable x by variable y

x= x+y;

4. Output the value of x and leave the cursor on the same line

cout<<x;

5. Add x to y, double it and store the value in z

z= (x+y) * 2;

6. Show the exact output of this code:

x = 7.987654321;

cout << fixed << showpoint

<< setprecision(2) << setw(5) << x;

7.98

Write code to:

open a file called data.dat with a stream called myFile

myFile.open("data.dat")

read 3 integers into vars x, y and z

?? is it int x,y,z; ??

calculate the sum and average and store in vars sum and avg

output all 5 values (x, y, z, sum, avg) on 5 separate lines

I'm not sure ??

thanks for your input!!!