Paella is a classic Spanish fiesta dish made from chicken, rice, and shellfish. A pound of chicken
costs $1.00 and supplies 100g of protein. A pound of rice costs $0.50 and supplies 20g of protein. A
pound of shellfish costs $3.00 and supplies 50g of protein. If the resulting paella weighs 18 pounds,
costs $19.00, and supplies 850g of protein, how much rice, chicken, and shellfish were useD