Please solve it with good answer and by clear way (Solve all parts of the questions)

a) [4 pt.] Assume that the population of the world in 2001 was 6.2 billion and is growing at the rate of 1.25% year. a) Give an explicit formula for the population of the world n years after 2002. b) What will the population of the world be in 2022? b) [6 p.). For the following sequence, find 440 2. = 5, Q1 = 14, az = 4(Q; -2,)