On average, which store had the better price (cheaper) and by how much? Super store by $0.08
O Discount Mart by $3.20
O Discount Mart by $0.08
Super Store by $3.12

The discount mart by 0.08

Hope it helps

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.