Find the derivative of f(x) = 12x^2 + 8x at x =9

Which ordered pair (c, d) is a solution to the given system of linear equations- c+2d=13 -9c-4d=-15

What is the value of x in the equation (2)3) (x+6)= -18 a. -36 b. -33 c. -24 d. -18

Abouncy ball is released from a certain height. on the first bounce, it travels 32cm. with each subsequent bounce, it travels 9/10 the distance of the previous bounce. what is the total distance that the ball has traveled when it completes its 25th bounce?