Which expression forms an equation? 2*9= 40 ÷ 1 5 60 ÷ 2 3 40 ÷ 2 1 60 ÷ 6 5

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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c) yes, because of asa or aas

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