When a straight line is given the form:

m is the gradient. It shows how the value of y changes for an increase of x by 1.
So, in this case, the gradient is
4
Answer:
i ask your teacher
Step-by-step explanation:
ask your teacher instead of asking for answers
Remark
Average in this case does not mean you take (s1 + s2)/2. What average speed means is Total Distance / Total Time.
Formula
Average speed(s) = Total Distance / Total Time
Givens
Total Distance = 252 + 30 = 282 miles
Total Time = 5 hours.
Substitute and Solve
Average speed = 282 / 5
Average speed = 56.4 miles / hour <<<<< Answer.
The other facts are not used.
Answer:
x=30
Step-by-step explanation:
2x=x+30
x=30