Melody buys a skateboard that costs $79.81 and a helmet that cost $26.41 she uses a 45% off coupon on the purchase if melody pays with a $100 bill about how much she and she she get back?

This is my question~~ ( r ^ 4 - 2r ^ 3 - 23 r ^ 2 - 4r - 32)÷(r+4) ~~ i must use long division to solve it : / i was wondering if anyone world like to solve it. and if so, share step-by-step explanations! you! ❤

Select all of the following expressions that are equal to 2.5.

Rena used the steps below to evaluate the expression , when . step 1: substitute into the expression. step 2: simplify the parentheses. step 3: evaluate the power to a power. step 4: use reciprocals and find the value. in which step did rena make the first error?