How can you quickly calculate 20 percent of any bill amount? a-round the amount to the nearest $10, remove the zero in the ones place, and add half the resulting amount.
b-round the amount to the nearest $10, remove the zero in the ones place, and halve the resulting amount. c-round the amount to the nearest $10, remove the zero in the ones place, and double the resulting amount.

  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).

21/58.

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