Larry's Lawn Care is a lawn service company that provides mowing, pruning, and weed management. Larry is trying to get a better understanding of his costs by categorizing them as fixed or variable. Which of the following costs are most likely to be considered fixed costs?

A) the cost of gasoline for the lawn mowers
B) wages paid to lawn care workers
C) the cost of fertilizer
D) the cost of the lease on the mower storage facility

In a high school with 3000 students, counselors are putting together a math tutoring program for the neighboring middle school. they plan to invite high school students with high average test scores to tutor middle school students, and they would like to offer gift cards to the student tutors. the counselors have a spreadsheet showing each student’s average test scores, and in order to find out how many gift cards they should purchase, the counselors need to count how many students would qualify to become tutors. which type of function would best the counselors determine the number of eligible students?