Morris griffin bought 7 gallons of paint to paint his neighbors house. he had 4 gallons and 3 quarts of paint leftover. how many quarts of paint did he use?

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  9 quarts

Step-by-step explanation:

There are 4 quarts in a gallon, so the amount used was ...

  used = bought - leftover

  used = (7 gal)(4 quarts/gal) - ((4 gal)(4 quarts/gal) +3 quarts)

  used = 28 quarts - (16 +3 quarts)

  used = 9 quarts

Morris Griffin used 9 quarts of paint to paint his neighbor's house.

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.