Each u.s. penny weighs 2.5 grams. how many pennies,x is how many pennies it an equation, are on scale if their total weight is 37.5 grams: a. 2.5+x=37.5 x=12,b. 2.5x=37.5 x=15, c. x-2.5=37.5 x=40,d. 2.5x=37.5 x= answer quick.

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