Gilbert earns $7.50 per hour washing cars. graph the relationship between the number of hours gilbert works and the total amount of money he earns.

You can put the dollars on the y axis and the hours on the x axis. Whenever the hours increase by 1, move over 1 on the x axis and 7.50 up on the y axis. 
The first point should be (1, $7.50).                                         ↑      ↑                                     hours, money earned
The second point then will be (2, $15.00), the third will be (3, $22.50), and so on.

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Step-by-step explanation:

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The answer to the question is d