The range of sales Dr. Spencer Lewis must exceed to profit the most from the second deal is 15,000 sales.
To find the range that will benefit Dr. Spencer Lewis the most with the second deal, we must perform the following operation:
We must replace the X with several numbers and buy the result, when the result of operation B exceeds the result of operation A, it means that it will be more profitable.
According to the above, if we replace the X with 15,000, the values will be the same, however, each number that we increase will mean a greater profit in agreement B.
Learn more about sales in: https://brainly.com/question/14211563
#SPJ1