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=2 Barney has a bag of $1 and $2 coins. The total mass of the coins is 71.4 grams. Barney knows that: the mass
=2 Barney has a bag of $1 and $2 coins. The total mass of the coins is 71.4 grams. Barney knows that: the mass of a $1 coin is 9 grams and the mass of a $2 coin is 6.6 grams. What is the smallest mass of exactly $3 worth of coins? grams What is the total value of the coins in the bag? $ EA
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