Which equation is incorrect?

answer:   a. (abc/2)² = (a²b²c²/4)

step-by-step explanation: you have to follow this rule, every exponent into the equation must be elevated 3 times.

for this case will be applicable the exponent summary,

(abc/2)²

so if you apply this equation value by value you will get the following

a * a = a²

b * b = b²

c * c = c²

2 * 2 = 4

then we get this equation (a²b²c²/4)

if you this rule with the rest of equation, you will find wrong results, because are bad performed, because of that the correct answer is the a

  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).