A band is planning to market a CD. The fixed costs are $680 and the variable costs are $5 per CD. The wholesale price of the CD will be $9. For the artist to make a profit, revenues must be greater than costs. How many CDs, x, must be sold for the band to make a profit?

211 CD's must be sold for them to make a profit

Explanation:

Fixed costs and variable costs times x must be set equal to the selling price x in order to find out how many CD's must be sold for a profit.

So :

1470 + 4x = 11x

1470 = 11x - 4x

1470 = 7x

x = 210

∴  210 Cd's must be sold for them to break even as their revenue will pay for their costs of marketing. This means they have to sell 211 Cd's in order to see a profit.

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the clues that signal the reader should change tone are the punctuation marks, the grammatical signs. for example, the quotation marks at the beginning of something someone else said literally or the exclamation marks.

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the clue that the reader understand how to read the word "bang" is the exclamation mark. it gives the word a surprise tone, a strong accent.

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