Matlab question. how do you solve this?

2.2 (20 points) The population of a certain country is 50 million and is expect years. Calculate the population 5, 10, and 15 years from now by definir and using element-by-element calculations. Population growth can be modeled by the equation ed to double in 20 ng a vector t with 3 elements P - Po,2, where P is the population at time t, P is the population at 1 -0, and d is the doubling time