Answer:
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Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form
or 
In this problem we have a proportional variation
Let
y ----> the pay in dollars
x ----> the number of hours worked
In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin.
The slope or constant of proportionality in this problem is equal to

substitute
The algebraic expression is equal to
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