9. A picture framing shop sells ready-made frames and also does custom framing using different kinds and widths of wood or metal. The
shop has a three-day sale. During the sale, for an 11-inch x 14-inch frame, a ready-made frame costs $12 and a custom frame
costs $30. Over the course of the three days, the shop sells ninety-two 11 x 14 frames and collects $1,788. Solving which system
of equations would yield the number of 11 x 14 ready-made frames r and the number of 11 x 14 custom frames c that the shop
sold during the three-day sale?