February 28, 2017

Homework Help: Problem Solving

Posted by Skyler on Friday, January 29, 2010 at 2:56am.

Sydnell buys a calculator that's on sale. He paid $90 not including tax. if she had purchased the calculator while it wasn't on sale, he would have paid $110 not including tax. What was the discount he received? Explain.

Thanks! (:

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