Expresa de. Forma fraccionaria y decimal 7%

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?

What is the base of 1/9 to the power of 2

What is the value of x in the this question ?