Answer:
5.5 miles per hour
Step-by-step explanation:
Since he travels a total of 55 miles in 10 hours, you need to divide.
55/10 = 5.5
total hours/total miles = miles per hour
63
20-9.80=?
5.-2.60=?
Find out. Solve them.
N=79.2
163.7-84.5=N