Please answer this exponential growth problem.

Question

The population of Portugal in 1980 was 9.8 million people. The population has been constantly rising at a rate of 1.5% What is Portugal's population for the year 2020?

Answer 1

A = a₁(r)^t

 

A = 9.8(1.015)⁴⁰

A ≈ 9.8(1.8140)

A ≈ 17.7773804

 

The population is approximately 17,777,380.