Posted by **Bob** on Tuesday, November 27, 2012 at 4:11am.

A store manager bought c calculators for $8. All but four were sold for $10 each. The remaining four calculators were not sold. Find the store's profit, in simplified form, in term of c.

- algebra -
**drwls**, Tuesday, November 27, 2012 at 5:42am
(c-4)*10 - 8c = 2c -40

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