The instructor has offered to teach the course for a percentage of tuition fees. Specifically, she wants $270 per person attending the class. Assume that the tuition fee remains at $420 per student. f. Is the cost of instruction a fixed or a variable cost? g. Determine the profit, assuming that 20 students take the course. h. Determine the profit, assuming a 10 percent increase in enrollment (.e., enrollment increases to 22 students). What is the percentage change in profitability? 1. Determine the profit, assuming a 10 percent decrease in enrollment (i.e., enrollment decreases to 18 students). What is the percentage change in profitability? Complete this question by entering your answers in the tabs below. Required F Required G Required H Required I Is the cost of instruction a fixed or a variable cost? The cost of instruction is a Required 0 >