Suppose the extra cost to a doctor of keeping his office open on Saturdays is $1,200. Then, the doctor should stay open on Saturdays if keeping the office open brings in additional revenue of $1,200 or more.

Question

Quizplus · Accepted Answer

If the additional revenue from keeping the office open on Saturdays is $1,200 or more, it would cover the extra cost and result in a net profit. Therefore, it makes sense for the doctor to stay open on Saturdays.

Suppose the Extra Cost to a Doctor of Keeping His