Brian is checking out his retirement savings. he currently has $318,000 in his account, which earns an interest rate of 7% compounded annually. he wants to determine how much he will have in the account in the future, even if he makes no additional contributions to the account. a) write a function, to represent the amount of money that will be in his account in t years.

b) brian's goal is to save $1,000,000. determine
algebraically, to the nearest year, how many years it will
take for him to achieve his goal.