How many minutes will it take josiah to skateboard to his friends house sebastian house, which is 3 miles from school, if he travels at the same rate that he did from his house to school if minutes is 20?

Liz is shipping a package to her friend.the maximum weight of a medium flat-rate box is 20 pounds,including the box which weighs 6 ounces.write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.