Suppose that the departmental final exam scores are normally distributed with a mean of 72 and a standard deviation of 9. Grades (A, B, C, D, F) are assigned according to the rule below. The top 10% receive an A.

The next 20% receive a B.

The middle 40% receive a C.

The next 20% receive a D.

The bottom 10% receive an F.

Find the lowest final exam score for a student to receive:
an A
a C
a D

The equation shown below represents function f. f(x)= -2x+5 the graph shown below represents function g. which of the following statements is true? a. over the interval [2, 4], the average rate of change of f is the same as the average rate of change of g. the y-intercept of function f is less than the y-intercept of function g. b. over the interval [2, 4], the average rate of change of f is greater than the average rate of change of g. the y-intercept of function f is greater than the y-intercept of function g. c. over the interval [2, 4], the average rate of change of f is the same as the average rate of change of g. the y-intercept of function f is greater than the y-intercept of function g. d. over the interval [2, 4], the average rate of change of f is less than the average rate of change of g. the y-intercept of function f is the same as the y-intercept of function g.