Please solve without excel

1. JB is planning to retire in 35 years. He would like to deposit a regular amount every 2 weeks until he retires at an average rate of return of 12% compounded quarterly. Following his retirement, he wishes to receive an annual payment of $120,000 increasing by $3,000 per year for 25 years. Assume that withdrawals occur at the beginning of each year during retirement. a. How much money must he have in his saving account at retirement b. How much money must he deposit every 2 weeks for the next 35 years