Mathematics, 15.12.2020 20:30 dkjfghdjk

A set of weights includes a 4 lb barbell and 6 pairs of weight plates. Each pair of plates weighs 20 lb. If x pairs of plates are added to the barbell, the total weight of the barbell and plates in pounds can be represented by f x( ) = 20x + 4. LOOK AT THE PICTURE,
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A set of weights includes a 4 lb barbell and 6 pairs of weight plates. Each pair of plates weighs 2

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A set of weights includes a 4 lb barbell and 6 pairs of weight plates. Each pair of plates weighs 20...