Question 1116349
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{{{30 + (2/9)*x}}} = 100  ====>


{{{(2/9)*x}}} = 100 - 30 = 70  ====>

x = {{{(9/2)*70}}} = 315 dollars.


<U>Answer</U>.  She needs 315 dollars of sales to earn $100.
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Solved.