Ateacher is buying supplies for her students. she needs 32 folders and one folder costs 11 cents. there is a sale going on where if you buy 3 folders, you get one free. how much will she spend on the folders?

hi, i am not sure about this one but i think its d,

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.