What is the value of B for the following triangular prism? 6 yd 2 12 yd 2 17.5 yd 2 15 yd 2

1. what are the missing reasons in the proof 2. it's in the second picture and 3

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?

7. the area of the playing surface at the olympic stadium in beijing isof a hectare. what area will it occupy on a plan drawn to a scaleof 1: 500?