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An examiner marks 70 papers. The mean mark is 68 per paper. What is the total number of marks awarded by the examiner?
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Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.
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Ivan and jeff buy a package of 8 pens for $4.00. ivan wants 5 of the pens, and jeff wants 3.how much should each student pay?
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On the first of each month sasha runs a 5k race she keeps track of her times to track her progress her time in minutes is recorded in the table
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An examiner marks 70 papers. The mean mark is 68 per paper. What is the total number of marks awarde...
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