A point has D) zero dimensions
Both can be right because if the function goes up, turns and goes down, between x = -2 and x = 2, it can happen that f(-2) = f(2) and then the average rate of change is [f(2) - f(-2)] / [2-(-2)] which is 0/4 = 0.
The answer is 55. 23 dollars because if you add 45.05
+. 9.29
—————————
54.34
+. 0. 89
—————————
55.23
0.476 is the answer to this question.