Surface area for these composite figures.

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?

If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cxd)(x)

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11