$\"\"$

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a.

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The distance d that a tornado travels is $\"\"$ .

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Apply logarithm on each side.

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$\"\"$

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Apply power property of logarithm : $\"\"$ .

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$\"\"$

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$\"\"$

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Apply property of logarithm : $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ .

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$\"\"$

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(b).

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Find wind speed.

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A tornado travels $\"\"$ miles => $\"\"$ .

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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Apply power property of logarithm : $\"\"$ .

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$\"\"$

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Apply property of logarithm : $\"\"$ .

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$\"\"$

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Wind speed is $\"\"$ .

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$\"\"$

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a. $\"\"$ .

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b. Wind speed is $\"\"$ .