Mathematics, 08.09.2020 14:01 semily74

HELP ASAP!! Use cross products to determine which are valid proportions. Proportion
Not a Proportion
2/3 and 9/12
3/8 and 6/141
18/8 and 9/4
775 and 27/20
4/7 and 10/17.5

Answers: 3

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HELP ASAP!! Use cross products to determine which are valid proportions. Proportion
Not a Pro...