How do you do 11 and 12? Thank you!

11) Determine the future value of the following scenarios: a) Annual deposits of $4,500 for 30 years in an account paying 12% compounded annually? b) Quarterly deposits of $1,125 for 30 years in an account paying 12% compounded quarterly? c) Monthly deposits of$375 for 30 years in an account paying 12% compounded monthly? 12) Overtha Hill is ready to retire and has a choice of three pension plans. Plan A provides for an immediate cash payment of $130,000. Plan B provides for the payment of $15,000 per year for 10 years and the payment of $70,000 at the end of year 10. Plan C will pay $20,000 per year for 10 years. Overtha Hill desires a return of 8 percent. Determine the present value of each plan and select the best one