To find out how long it will take Mariah to travel 36.75 miles at a rate of 8.75 miles per hour, we can set up the equation using the function \( y = 8.75x \).
Here, \( y \) represents the distance (in miles), and \( x \) represents the time (in hours). We can rearrange the equation to solve for \( x \):
\[ x = \frac{y}{8.75} \]
Substituting \( y = 36.75 \) into the equation gives us:
\[ x = \frac{36.75}{8.75} \]
Now, performing the division:
\[ x = 4.2 \]
Thus, it will take Mariah 4.2 hours to travel 36.75 miles.
The correct response is 4.2 hours.