I need help I will give brainiest

Find the required measurements of the following trapezoids. a = 8 cm b = 16 cm h = 10 cm

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?

Ill mark the brainliest if you me with the these three questions 7,8,9