3 answers
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The correct proportion that can be used to find x, the number of dollars the voice coach charges for 4 hours of work is:
x / 165 = 4 / 1.5
Cross multiply to solve for x:
1.5x = 660
Divide by 1.5 on both sides:
x = 440
So, the voice coach charges $440 for 4 hours of work.