i think you would have to divide the money he had saved, which is $2,000 by the time he plans on exercising which is 40 hours, and the answer you get should tell you the answer to your question.
Another question on Mathematics
Mathematics, 21.06.2019 17:00
How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.