can someone answer all parts. pleas

Larissa is buying a car. She can either pay $19,248.00 in cash, or make weekly payments of $80.99 (at the start of each period) for the next 6 years. What interest rate would she be paying if she doesn't pay cash a) This question deals with the present value of an annuity due b) There will be 312 payments. The payment period is weekly c) The payment amount is $ 80.99 d) The effective interest rate per period is -0.182 % e) The present/future value is $ 19248