Simplify the expression.
7(x+y)-7x...
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Donald has x twenty-dollar bills and 11 ten-dollar bill. how much money does donald have? write your answer as an expression.
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Joanie watched 1 out of three of a movie in the morning
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Atown has a population of 17000 and grows at 2.5% every year. to the nearest year, how long will it be until the population will reach 19600?
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During how many months was the difference between the number of days with homework and with no homework greater than 6?
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