Hey!
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Question #1:
We know that they charge $25 an hour then $12 for gas when they return it.
Answer:
![\left[\begin{array}{cccc}Rental Time (h)&1&5&10\\Cost(dollars)&37&137&262\\\end{array}\right]](https://img.qammunity.org/2020/formulas/mathematics/middle-school/a9yk1945wvr227al6d09ww1tbf2p62zme1.png)
Explanation: So you will add $25 for every hour they rent the boat then at the $12 gas fee.
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Question #2:
Answer: The 2nd Chart
Why? Well, because a proportional relationship is when one number is always a constant multiplied to the other.
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Hope This Helped! Good Luck ;)