Marc P. answered • 11/03/19

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We can use the formula salary = hourly rate * hours worked. Because there are two situations, we will need to use this equation twice. Let's call Barney's original salary and rate s and r. Then for the original situation we get:

salary = hourly rate * hours worked

s = r*30

And for the new situation we get:

salary = hourly rate * hours worked

528.96 = (.95r)*(30 + 2)

You can then solve the second equation for r and substitute that value of r back into the first equation. I got s = 522 dollars.