A population with given per capita growth rate: A certain population has a yearly per capita growth rate of 2.3%, and the initial value is 3 million. a. Use a formula to express the population as an...

A population with given per capita growth rate: A certain population has a yearly per capita growth rate of 2.3%, and the initial value is 3 million.

a. Use a formula to express the population as an exponential function.

b. Express using functional notation the population after 4 years, and then calculate that value.