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| 1) | This is a graph of the sunrise over several months. The approximate time of sunrise is graphed as a function of the month. What is the change in time (in minutes) of sunrise from September to July? |
2) | This is a graph of the price per basketball depending upon how many people say they will buy it. Assuming that 5 people will buy basketballs, how much money (total) will the company take in? |
| 3) | This is a graph of the price per cup depending upon how many people say they will buy it. What is the minimal price per cup that the company will charge? |
4) | This is a graph of the price per clock depending upon how many people say they will buy it. What is the price of clock if 5 people say they will buy it? |