. The population of a certain city doubles every 50

years.

(a) Give an exponential model for this situation.

(b) If the city’s population is currently 100,000, how

long will it take for the population to exceed 400,000?

2. A college savings account pays 13.2% annual interest

compounded semiannually. What is the balance of an

account after 12 years if P21,000 was initially

deposited?

3. Maine decides to participate in an investment that

yields 3.75% interest annually. If she invests ₱12,500,

how much will her investment be after 5 years?

Pakisagot ng maayos​