HELP PLZ THANK YOU

Kristen would have 11 magazines

Step-by-step explanation:

You would divide 77 by 7 which gives you 11 so therefore:

n = 77 ÷ 7

n = 11

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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