What is the surface area of the triangular prism

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! ❤

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

Find the distance between (0,5) & (-4,2)