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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?

What is the area of the trapezoid shown ?

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)