The total number of ours worked = 37 hours.
Total amount paid = $ 327.45
Th constantrate of Hal's pay is calculated as,
[tex]\begin{gathered} Rate\text{ = }\frac{Total\text{ amount}}{Total\text{ hours worked}} \\ Rate\text{ = }\frac{327.45}{37} \\ Rate\text{ = 8.85} \end{gathered}[/tex]Thus the constant rate of Hal's pay is $ 8.85.