Food and clothes are
shipped. Each carton of
food feeds 12 and clothing
helps 5. Each 20 ft³ box of
food weighs 50 lbs and 10
ft³ box weighs 20 lbs. The
total weight cannot
exceed 19000 lbs and the
volume cannot be more
than 8000 ft3. How many
cartons of food and
clothes should be sent per
shipment to maximize
people helped?