HELP!! A S2000 investment doubles in value every 5 years. The function f (x) = 2000 • 23
represents the value of the investment after x years. How much will the investment be
worth after 18 years?
The city library will be increasing the number of books it has to loan at a rate of
5% per year. The library currently has 40,000 books. The number of books they
will have in any given year is modeled by the function h(t) = 40.000 • 1.05.
where t is the number of years. How many books will the library have 8 years
from now?