There are 2 dogs one named major and the other jumbo.
major weighs 100 pounds and jumbo 150 pounds. they eat
dry dog food, which comes in a 40-pound bag that costs
$30. together, major and jumbo eat a whole bag each
week. major eats two fifths of the bag while jumbo eats the
rest. how much would it cost to feed jumbo in february,
which has 28 days?