11 > t + 9 can someone plz me with this

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?

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?

∆red ≅ ∆ by rule will give brainiest if possible