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The eqaution R=10A-20 represents the revenue R (in dollars) you make by spending Adollars on advertising. Your revenue totaled $110. How much did you spend on advertising.
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The eqaution R=10A-20 represents the revenue R (in dollars) you make by spending Adollars on advertising. Your revenue totaled $110. How much did you spend on advertising.

User Trinitrotoluene
by
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1 Answer

1 vote
110=10A-20
Add 20 to both sides
130=10A
Divide by 10
13=A
You spent $13
User FDIM
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