Pls I need help with this two homework question I need them ASAP pls help out

Do u just plot the numbers on the graph like (1,

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?

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?