Jackson Middle School sells bags of popcorn on Fridays for $2.50. Amal borrowed popcorn money from Bella for three weeks, and paid back 1/2. Which
expression shows how much money Amal owes Bella.
O x 3(-2.5)
O-2.5 (3)
O + 2.5 (3)
○ 3 (2.5)