You order from a catalog the following office supplies: 10 boxes of paper, each box is 6 pounds and 36 boxes of pens, each box weighs 12 ounces. Shipping charges are $12.00 for the first 20 pounds, $10.00 for the next 30 pounds, $0.50 per pound for the next 50 poinds. What will the shipping charge be ?

Respuesta :

It would be $40.50 because the pens are 27 pounds and the first 20 office supplies are $12, the next 30 are $10, and the remaining 37 would be $18.50