Which is a complete list of factors of each term in the expression

The correct answer for this problem is:

A) 15:1,3,5,15 and 20x: 1,2,4,5,10,20,x

This is correct because to be a complete list of factors for each term there has to be the most common factors but also has to have the variable, being x.

  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).