Abby’a account pays 4.2% annual interest compounded quarterly l. Brett’s account pays 3.9% annual interest compounded continuously. Write a function, A(t), for Abby’s account and a function, B (t), for Brett’s account that calculates the value of each account after 1 years. Determine who will have more money in their account when the twins turn 18 years old, and find the difference in the amounts in the accounts to the nearest cent. Algebraically determine, to the nearest tenth of a year, how long it takes for Brett’s account to triple in value. 500 in the account?