Exhibit 7-2 Cost schedule for pizza production Labor Energy Materials Pizzas Cost Cost Cost 0 $10 SO $0 1 10 12 4 2 24 22 8 40 30 12 4 60 36 16 5 90 40 20 Exhibit 7-2 shows the labor, energy, and materials cost of making various quantities of pizzas. The table shows that the energy cost of making pizzas will: O increase at a decreasing rate. O decrease at a decreasing rate. O decrease at an increasing rate. O increase at an increasing rate. increase at a constant rate. 23 3