Penny is making pipe cleaner flowers to sell on Easy for $1 each. Penny and her friends become more efficient as they gain practice in flower production. The first 100 flowers cost $1.25 each. The next 100 cost $1.10 each. The next 100 cost $1.00 each. The next 100 cost $0.80 each. All the rest cost $0.60 each. What is the marginal cost of the 240^th flower? What is the marginal profit of the 240^th flower? If Penny sells 1000 flowers, how much profit does she earn in total? The University basketball concession has a marginal cost of $0.25 for a cup of coffee and a fixed cost of $60. If they sell 110 cups of coffee at a price of $1.00 per cup, what is their profit? What is their variable cost? What is their marginal profit