In the same situation (below), which algebraic term best describes the number 8 in the expression?
The expression 640 + 8h represents the amount of water in the container after h hours.
A landscaping company estimates the price of a job, in dollars, using the expression 60+12nh, where n is the number of landscapers who will be working and h is the total number of hours the job will take using n landscapers. Which of the following is the best interpretation of the number 12 in the expression?
(Source: SAT Practice Test #2, Section 2, Question 3)