What is the answer for this problem for solving two step equations?

Which of the following is the missing term, a2, of the geometric sequence in which a1=2 and a3=200

The function f(x) = 14,600(1.1)* represents the population of a town x years after it was established. what was the original population of the town?

Alcoa was $10.02 a share yesterday. today it is at $9.75 a share. if you own 50 shares, did ou have capital gain or loss ? how much of a gain or loss did you have ? express the capital gain/loss as a percent of the original price