Lindsay hiked down a canyon and stopped each time she descended 1/2 mile to rest. She hiked a total of 6 sections. What is her overall change in elevation?

20

step-by-step explanation:

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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step-by-step explanation:

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