can you check this question for me please and correct the mistakes

Keiko needs a new roof for her house. She can pay cash, or pay by installments. Payments would be $898.74 quarterly (at the end of every period) for 5 years. The interest rate is 8.900% compounded weekly. a) This question deals with the present = value of an annuity immediate b) There will be 20 payments. The payment period is quarterly c) The payment amount is $ 898.74 d) The effective interest rate per period is 2.246 % e) The present/future value is $ 8036.60