Simplify the expression : 9(y+z). a.9y+z. b.9z+y. c.9y+9z. d.9yz

Can someone pls ! pls answer all. no explanation needed..

In order for the function to be linear, what must m be and why? m = 22 because the rate of change is 1. m = 20 because the rate of change is 3. m = 22 because the rate of change is -1. m = 20 because the rate of change is -3.

Determine the function’s value when x = -1 a. g(-1)=-3 b. g(-1)=0 c. g(-1)=1 d. g(-1)=27