Can someone pls help ASAP

In the coordinate plan (-6,9) b (3,9) c (3,3) def is shown in the coordinate plan below

Solve the system of equations y= 3/2 - 1, -x+ y =-3

Part a: sam rented a boat at $225 for 2 days. if he rents the same boat for 5 days, he has to pay a total rent of $480. write an equation in the standard form to represent the total rent (y) that sam has to pay for renting the boat for x days. (4 points)