1. A real estate company balances the books for its business on the first day of each month. It hopes to sell houses every other day of the month. The average number of houses, S, the company sells each day, t, is represented by the inverse of the function S1=t29t+14t2+4t12. Which equation represents the average sales each day for the real estate company?

A. S = t+6 / t-7

B. S = t-6 / t+7

C. S = 7t+6 / t-1

D. S = 7t-6 / t+1

2. Given a function f(x) = 4x^2 +1, what is the average rate of change of f on the interval [2, 2+h]?

A. 4h^2 +16h +17

B. 4h^2 +16h

C. 4h +16

D. 17