Mathematics, 02.09.2019 19:00 FloweyFlower

Ateacher had 21 red pens. if the ratio of red pens to blue pens she owned was 3: 1 how many pens she she have total

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Ateacher had 21 red pens. if the ratio of red pens to blue pens she owned was 3: 1 how many pens she...

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