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Mathematics, 02.07.2019 13:00 northsidehotboy

For the equation y = 3.5x and y= 25x + 40.50, x represent time in hours and y represents cost in dollars. which equation is not the equation of a proportional relationship? explain.

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For the equation y = 3.5x and y= 25x + 40.50, x represent time in hours and y represents cost in dol...
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