If you deposit $1000 in a savings account with an interest rate of r compounded annually, then the balance in the account after 3 years is given by the function b(c) = 1000(1 + r)3, where r is written as a decimal. what interest rate will yield a balance of $1100 after 3 years? . a. 3.23%. c. 3.63%. b. 3.33%. d. 3.66%.