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The formula \(h -15 = 3.2t\) gives the height \(h\) in inches of a plant \(t\) weeks after planting. How high was the initial height of the plant?

A \(15\) inches.

Initial means at the beginning. At the beginning \(t\) is 0. \(h =15 + 3.2t\) gives the height of a shrub in inches after \(t\) weeks. When planting occurs the height is \(15 + 3.2 × 0 = 15\) inches

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