Can someone answer this for me?

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?

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

If your teacher tells you to do questions 6 through 19 in your math book for homework, how many questions is that