Which expression can be used to find 80% of 120?

  (0.8)(120)

Step-by-step explanation:

80% means 80/100 or 8/10 or 0.8

"of" means "times", which is indicated by writing numbers next to each other.

So, 80% of 120 is ...

  (0.8)(120)

450

step-by-step explanation:

you get texts and minutes, so why not

  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).