I need help with this

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling

What is the measure of angle tvu shown in the diagram below

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! ❤