To answer this question, we need to use the concept of unit rate. In this case, to find the payment per hour of Job number 1, we can proceed as follows:
![\frac{52.50\text{dollars}}{7\text{hours}}=(7.5d)/(h)](https://img.qammunity.org/2023/formulas/mathematics/high-school/vtqvjb37qsflc4ob1w6dzwg4co7qn9j9ca.png)
Therefore, Job number one pays $7.50 per hour (to the nearest cent).
(We divided the total amount of money by the total amount of time to find the number of dollars per hour.)