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Nawaz Dhandala asked Feb 2, 2023

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Nawaz Dhandala asked Feb 2, 2023

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5 votes

Substitute x=30 to find the profit of washing 30 cars:

$\begin{gathered} f(x)=8(x-2)-20 \\ \Rightarrow f(30)=8(30-2)-20 \\ =8(28)-20 \\ =224-20 \\ =204 \end{gathered}$

Therefore, the profit for washing 30 cars is:

$204\text{ dollars}$

MatthPen answered Feb 7, 2023

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