The last customer of the day is a loyal customer who brings in a %15.00 off coupon. She purchases two pain brushes, one dozen colored pencils, and one sketch book. What percent did she save by using her coupon?

560

hope this : )

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.