I can't scan my homework though.

Can I post a problem manually for no points

Anyway, here is one of my homework problems:

In how many ways can you sell $5 and $3 pumpkins to make $200?

It's a diophantine equation. Let x=#of $5 pumpkins, and y=# of $ 3 pumpkins.

5x+3y=200

Solve for x,

x=40-3y/5

So y must be a multiple of 5. It goes up to until 40-3y/5 is negative.