Ineed with these 4 problems. due tomorrow ! you : ) 15 points!

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?

Find the cosine function that is represented in the graph.

Give all possible names for the line shown.calculation tip: lines can be written with either point first.