Answer:
n + q = 28 0.05n + 0.25q = 4
4.8 miles per hour.
Step-by-step explanation:
Average speed=Total distance/Time taken
=26.2miles/5.5hour
=4.8 miles per hour
18-4s
15+3-4s
You just simplify to get 18-4s.
Hope that helped!