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Bob's carpet cleaning company uses the equation y=22x+30 to calculate cost, y, to clean x numbers of rooms. Andy's carpet cleaning company uses the table below to calculate the cost to clean rooms.

Laura needs 5 rooms cleaned. Which company charges less and by how much less?

Bob's carpet cleaning company uses the equation y=22x+30 to calculate cost, y, to-example-1

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Bob charges $140
Andy charges $135
Andy is cheaper
User Vaughan Hilts
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