Solve the equation.
8(3 – z) = 42

-2.25

Step-by-step explanation:

8(3-z)=42

24-8z=42

24=42+8z

-18=8z

z=-2.25

z=-9/4

Step-by-step explanation:

8*(3-z)=42

24-8z=42

-8z=42-24

-8z=18

z=-18/8

z=-9/4

  b.   the average rate of change of f(x) is less than the average rate of change of g(x).

step-by-step explanation:

since the length of the interval is the same in each case, we only need to compare the change in y-value to see which is greater.

so the change in y-value for function f is (6 )) = 9.

the table tells us

so the change in y-value for function g is (31 -1) = 30.

the change in y-value of f(x) on the interval is less than the change in y-value of g(x) on the same interval, so the average rate of change of f(x) is less than the average rate of change of g(x).