Sarah received 55 for her birthday. She used some of that money to buy 3 shirts priced at m dollars each. How much money does Sarah have left? Write your answer as an expression.
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Step-by-step explanation:
Sarah received 55 for her birthday.
Therefore, the total money she had = 55
Since she used some of that money to buy 3 shirts priced at m dollars each.
Then the total amount she spent = 3 times m= 3m
Now, the amount of money she had left = 55-3m
Hence the required expression is 55 - 3m
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