Write a system of equations to describe the situation below, solve using any method, and fill in the blanks. Oak Grove Photography Studio is taking graduation portraits for students at local schools. Eighth graders from Oak Grove Elementary School ordered 91 basic portrait packages and 60 deluxe portrait packages, for a total of $10,953. The seniors at Norwood High ordered 75 basic portrait packages and 77 deluxe portrait packages, for a total of $11,424. How much does each type of package cost?

A basic package costs $
, and a deluxe package costs $
.