Nicholas used a \$10$10dollar sign, 10 bill to pay for a granola bar that only costs ppp dollars.

How much change did Nicholas receive from the cashier?
Nicholas used a \$10$10dollar sign, 10 bill to pay for a granola bar that only costs ppp dollars.
How much change did Nicholas receive from the cashier?

what a mish-mash!

have you never bought something with a $10 bill and received change?
If you spend $p, then you get back $10-p