alright .. i figured it out :) .. thankz for helping me out waynespangler

Thanks for pointing me out waynespangler.. i made the change for the first one you pointed me out.. but for the second one.. I am confused. If i remove


miles=console.Readline()


from the...

Enter the miles driven, use -1 to end:
Enter the gallons :

The miles / gallon for this tank was

Enter the miles driven, use -1 to end:
Enter the gallons used (-1 to end) :


The...