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Can someone please help me? I'd appreciate it.

You and your friends go to a music store to buy CD's on sale for $6 each. Together you spent $77.76, which included a tax of $5.76. How can I use mental math to solve this equation for how many Cd's were purchased? Do I take their total and divide it by the tax?

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Subtract the tax from the total then divide that number by 6.

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total minus the tax divided by the cost.

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