Answer:
Explanation:
Base on the scenario been described in the question, we use the following steps to solve the problem
Step 1
a.
The following are the gross profit information for three representative customers mentioned in the problem:
Mechanical Engineering homework question answer, step 1, image 1
Step 2
Refer to the customer service activity base data given in the problem and find.
Customer servide activities:
Mechanical Engineering homework question answer, step 2, image 1
Also, attached file for each step .