Mathematics, 02.08.2019 01:30 brandy127

Peter is buying 4 calculators to donate to his class. each calculator costs $9. he is also buying a $1 bottle of water for himself. he thinks his total will be $37. which expression could be used to estimate the reasonableness of peters total

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Peter is buying 4 calculators to donate to his class. each calculator costs $9. he is also buying a...