A race is being planned in your city. The course for the race is shown in the graph. The race starts at point A and ends at point F. The distance is in miles.
21. How many miles is the entire race?
PLEASE HELP

At which value in the domain does f(x) =0?

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

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! ❤