7. After a storm, a tree fell on Gary's garage and it created a hole in its roof. Gary hired Carol to fix the roof, for $5,000, paid in advance, the work to begin on May 1st and to be completed by May 4th, a reasonable time. However, Carol got behind in her work and by May 10th had not begun, and then she contacted Gary and said, "sorry, I am so behind- I will not be able to complete the work." Gary was very mad and left many complaining voicemails, but did nothing else for two months. It rained very heavily in July, and due to the leak, the contents of Gary's garage were damaged in the amount of $10,000, and the roof got worse. Finally, in August, Gary was fed up with Carol, and he hired Delores to complete the work (which she did, but at a cost of $6,500) and then sued Carol for $21,500- $5,000 to get his money back, $6,500 for the cost of hiring Delores, and $10,000 for the property damages which he asserted were entirely Carol's fault for her breach of contract and due to the hole in the roof. a. How much