mosaud1998
Thread starter
You're right. You're always using math.You're never done with math. There are some assumptions built into that 21k a year. You have to look at the details of the calculation. It's basically wrong, you basically have the correct number at 7k. Where do you think the other 14k comes from? They're making some other assumptions that don't come into play in your case. Or you've put in the numbers incorrectly. Always check your work. This calculation is trivial and is left as an exercise for the student.
Idk how they got 21k miles. But, per my community college, there are 16 weeks in one semester. On average there are 15-16 weeks in one college semester.
I think my math is right.