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Mathematics, 25.06.2019 20:30 ceciliaaa

Krista needs her kitchen sink repaired. she pays a plumber a flat fee for an initial consultation, and then she pays him an hourly rate for the time he works on the repair. the equation y = 25x + 40 represents this situation, where x is the number of hours and y is the total cost. what does the number 40 in the equation represent?

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