Bob's brother Steve planned to visit over the Labor Day weekend. The two brothers planned to build a deck in Bob's back yard that weekend. Bob ordered the lumber, concrete, nails, and other supplies to be delivered on Friday of that weekend. He also contracted to rent a saw for that weekend (Saturday, Sunday and Monday) at a cost of $20 a day. When he went to pick up the saw, the store had rented it to someone else. He drove all over town trying to rent another saw, but he could only get one for Sunday, Monday and Tuesday at a cost of $50 per day. Because they couldn't work on Saturday without a saw, Bob had to hire Mac to work with him on Tuesday. Of course, Bob had to take Tuesday off from work. Calculate the damages that Bob is entitled to from the rental company. Explain.