Josef investod $900 into an RRSP that earned interest at 6.7% compounded quarterly for five years (a) Find the balance the account at the end of the period. (b) How much interest is earned? (c) Vihat is the eflective rate of interest? (a) The balance of the acoount at the end of the period is 5 (Rourd the final answer to the noarest cent as needed. Round all intermediabe values to six decimal places as needed) (b) The amount of interest eacned is 5 (Round the fral answor to the nearest cent as needed. Round all intermediate values to six decimat places as needed) (c) The effective rate of interest is y. (Round the final answor to four docimal plabes as needed. Found al intermediate values to sik decimal phaces as needed.)