Answer: 40k⁶-15k⁴
Step-by-step explanation:

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By definition, if :


<span>We highlight the following elements:
</span><span>a = Base of the logarithm;
b = logarithmand or antilogarithm
y = logarithm</span><span>
Therefore:
</span><span>Note that since the base was not specified, we know that it is equal to 10.
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Answer:
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Base of the logarithm = 10
that would be 20 miles per hour. If in 8 hours you're going 160, then divide 160 by 8 and you'd get 20. Each hour is 20 miles. or 8 times 20 is 160. Your answer is 20 miles per hour