SAT Mathematics Practice Test 2

The price of the job, in dollars, is calculated using the expression $60+12\mathit{n}\mathit{h}$, where 60 is a fixed price and $12\mathit{n}\mathit{h}$ depends on the number of landscapers, $\mathit{n}$,working the job and the number of hours, $\mathit{h}$, the job takes those n landscapers. Since nh is the total number of hours of work done when n landscapers work h hours, the cost of the job increases by 12 for each hour a landscaper works. Therefore, of the choices given, the best interpretation of the number 12 is that the company charges 12 per hour for each landscaper.
Choice B is incorrect because the number of landscapers that will work each job is represented by n in the equation, not by the number 12. Choice C is incorrect because the price of the job increases by $12\mathit{n}$ dollars each hour, which will not be equal to 12 dollars unless $\mathit{n}=1$. Choice D is incorrect because the total number of hours each landscaper works is equal to h. The number of hours each landscaper works in a day is not provided.