$($a$)$ Determine the average speed for the trip.

Your response differs from the correct answer by more than $10\%.$ Double check your calculations. $k\frac{m}{h}$

$($b$)$ Determine the distance between the initial and final cities along the route.

$16?$

Your response differs from the correct answer by more than $100\%.km$

Average speed is distance traveled over total time. Don't forget to include the lunch stop in the total time.