mr walsh forgot a savings account that he opened with $3000 that earned interest rate of 2% per year. when he checked his account balance is $3,330 how long did he leave the account for

Taber invested money in an account where interest is compounded every year.he made no withdrawals or deposits. the function a(t)=525(1+0.05)^t represent the amount of money in the account after t years. how much money did taber origanally invested?