Jan has $28 to spend at the carnival. The admission is $6.50, she spends $4.00 on food, and each ride costs $3.00.
At most, how many rides can Jan ride?

First you would have to subtract 6.50 from 28, which would get you 21.50. Next, since jan spends $4.00 on food, we subtract 4 from 21.50, giving us 17.50.

Since each ride costs $3, we divide 17.50 & 3, getting us 5.83333.

This means that she can ride at max 5 rides.