A cargo elevator has a maximum carrying capacity of 240 pounds. Each cargo box weighs 20 pounds.
a. Write and solve an inequality that represents the maximum number of cargo boxes that the
elevator can hold.
b. A 140-pound person rides in the elevator with the cargo boxes. What is the maximum
number of cargo boxes the person can take with them on the elevator? Show that your
answer is correct by showing that one more than your answer would exceed the elevator
capacity