What does the standard error of the distribution of sample means​ estimate?

We must first determine the shape of a rectangular prisms _ a0 to find area of the prism

Answer this 30 points and brainliest!

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?