Answer:
The first choice
Step-by-step explanation:
Multiplyil by 6 to get 4y - 1 =21
Answer:
$68.44 for each additional belt
Step-by-step explanation:
The cost and revenue functions are:

The profit function, P(x), is given by subtracting the cost function from the revenue function.

The derivate of the profit function gives us the rate at which profit changes:

For x = 484, the rate of change is:

Profit is increasing by $68.44 for each additional belt
The ratio would be 3:4, or however you write ratios.
Hope this helped! :)
<span><span> combine like terms4ln(x) = 8
</span><span>divide both sides by 4.ln(x) = 2
</span><span>exponentiate both sides.<span>eln(x) = e^2</span>
</span><span>inverse property of exponents and logs <span>x = e^<span>2
pls return favor and answer question in profile pls
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