Answer:
See explanation
Step-by-step explanation:
First, let's convert feet to miles.
[tex]\dfrac{63,756 \text{ feet}}{1}\cdot \dfrac{1 \text{ mile}}{5,280 \text{ feet}}=12.075\text{ miles}[/tex]
Next, let's convert minutes to hours.
[tex]\dfrac{70 \text{ minutes}}{1}\cdot \dfrac{1\text{ hour}}{60\text{ minutes}}=\dfrac{7}{6}\text{ hours}[/tex]
Finally, let's find the unit rate.
[tex]\dfrac{12.075\text{ miles}}{\frac{7}{6}\text{ hours}}=10.35\text{ mph}[/tex]
Hope this helps!