Answer:
33 boxes.
Explanation:
We have been given that a freight elevator can safely hold no more than 2000 pound. Weight of elevator operator is 165 pound. Weight of each box is 55 pound.
Let n be number of boxes. We will write an inequality as weight of elevator operator and weight of all boxes should be no more than 2000 pound.

Now we will solve our inequality to find number of boxes that could be moved safely at one time.



Therefore, 33 boxes can be moved safely at one time.