A store sells boxes of chocolates wrapped with a bow . If the bow is made from a 15 inch length of ribbon:

A) how much ribbon remains from a roll which is 10 yards long after 20 boxes have been wrapped?
B) How many more boxes can be wrapped in this way? Thanks

1 yard = 36 inches

10 yards = 360 inches

360 - (20 * 15) = 300

60 / 15 = ?