Answer
8
Work Step by Step
We want to calculate the number of overtime hours (x).
Regular pay = 7.5
Overtime pay = 1.5$\times$7.5=11.25
Gross pay for the week =352.5
Overtime hours are counted after 35 regular hours per week.
352.5=35$\times$7.5+11.25x
352.5=262.5+11.25x
90=11.25x
x=$\frac{90}{11.25}$=8