The rectangle has a perimeter of 54 cm and the given area. its length has 3 more than three times its width. write and solve a system of equations to find the dimensions of the rectangle.

Giuseppi's pizza had orders for $931.00 of pizzas. the prices were $21 for a large pizza, 514 for a medium pizza, and $7 for a small pizza. the number of large pizzas was two less than four times the number of medium pizzas. thenumber of small pizzas was three more than three times the number of medium pizzas. how many of each size of pizza were ordered?