Solve. Justify each step with a mathematical reason. 9) -4(3r + 4) + 3r = -88

10) n +6(4 – 3n) = 109

plz no links

Suppose a ball is dropped fromca height of 6ft. it bounces back up but time it bounces, it reaches only 7/10 of its pervious height. what is the total of each height that the ball reaches after 5 bounces

36 inches/second = yards/minute how many yards?

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10