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A music store sold 10^3 CDs and 10^2 CD players. If each CD costs $12 and each CD player costs $35, what was the store's total earnings? ( ^ means power )

Answer :

total earnings = $15500 ; 10^3 x 12 = 12000 /10^2 x 35 = 3500 & 12000 + 3500 = 15500

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