Solve the system by substitution.
−7x−10y= 40
x=−2y...
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Arectangular courtyard is 12 feet long and 8 feet wide. a tile is 2 feet long and 2 feet wide. how many tiles are needed to cover the courtyard?
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Sections of prefabricated wood are each 5 1/3 feet long. how long are 7 1/2 sections placed end to end?
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