2) Lauren needs $195 by tomorrow to pay bills, and decides to do yard work for the cash. She plans to charge $25 for raking, and
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Given that we have the change in temperature over 7 hours and we are looking for the change over 1 hour, we can divide the total change in temperature by 7. Thus, the change in temperature would be .
Additionally, this can be solved by equations:
By using two different methods, we can determine that the change each hour was equal to 42/7 C° per hour.