What is the suface area of a hemisphere with a diameter of 14

Trish receives $450 on the first of each month. josh receives $450 on the last day of each month. both trish and josh will receive payments for next four years. at a discount rate of 9.5 percent, what is the difference in the present value of these two sets of payments?

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

You have 138.72 in your saving account u take out 45.23 and 18.00 you deposit 75.85 into your account