Rollng Plains Farms sold 27,000 bales of hay this year. They have set a goal to increase their sales by 8.6% each year. Write an exponential function, f(x), that models the goal for the number of hay bales sold x years from now. Of (x) = 27, 000(1. 086)*

A scientist initially has 40 mg of a radioactive compound that decays by about 10% eachyear (ie. after 1 year, 10% of the drug is gone). Assume the quantity of the compound is modeled byan exponential equation. Write a function describing the quantity of the compound as a function oftime. How long until only 5% of the compound is left.

The number of employees at a certain company is 1440 and is increasing at a rate of 1.5% per year. Write an exponential growth function to model this situation.

Please explain why each exponential function is growth or decay.