Give an example of a real world situation for which there could be a positive correlation

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?

Hi, can anyone show me how to do this problem? 100 points for this. in advance

Given the sequence 7, 14, 28, 56, which expression shown would give the tenth term? a. 7^10 b. 7·2^10 c. 7·2^9