Plazz I need help with this question

20 cm^2

Step-by-step explanation:

I see two horizontal trapezoids here.  Looking at the upper one, we see two different lengths:  7 cm and 3 cm; we also see that the width (measured vertically) is 2 cm.

The average length is (7 + 3)/2, or 5 cm.

Thus, the area of one trapezoid is (5 cm)(2 cm) = 10 cm^2, and the total area of both trapezoids is twice that, or 20 cm^2.

  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).

chiken

step-by-step explanation: