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Eric sells movie tickets. Adult tickets cost $8 and children's tickets cost $5. He keeps 15% of his sales. Which expression represents how much he keeps.

Respuesta :

The formula for the cost of the total sales is: 8a+5c where a is the number of adult tickets and c is the number of child tickers.

If he keeps 15% the formula is: 0.15(8a+5c) 

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