Answer:
56 miles per hour
Explanation:
By carefully observing the table shown:
[tex]\begin{gathered} The\text{ speed=}\frac{Change\text{ in the distance traveled}}{Change\text{ in time}} \\ \\ \end{gathered}[/tex]
Considering the first two rows of the table
[tex]\begin{gathered} The\text{ speed = }\frac{168-0}{3-0} \\ \\ The\text{ speed = }\frac{168}{3} \\ \\ The\text{ speed=56 miles/hr} \end{gathered}[/tex]
