Mathematics, 28.07.2019 07:30, gaboalejandro833

Lindsay went to the teacher supply store she bought 10 whiteboards for a total of $35 and some posters for $5.40 each. if she spent $51.20 total, how many posters did lindsey buy

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Lindsay went to the teacher supply store she bought 10 whiteboards for a total of $35 and some poste...