Answer:
...Sorry but I dont get the problem can you please clarify the problem..
Step-by-step explanation:
Step-by-step explanation:

Answer:
Percentage increase.
Step-by-step explanation:
It took the Phillips family 6 hours to drive to their vacation destination. 2 hours and 42 minutes extra because of traffic.
8 hours 42 minutes
-
6 hours 0 minutes
=
2 hours and 42 minutes
Percentage increase.
Answer:
is the correct answer to the given question.
Step-by-step explanation:
Missing information
In this question options are missing.Following are the option
(a) 
(b) 
(c)
(d)
As mention in the question On the highway, car is said to get 25 miles per gallon
We assume 
also that the value of
is fluctuate by 6 miles per gallon

This can be written as

Therefore
is the answer
We can divide the amount he traveled (640) by the time he traveled (10):
640 / 10 = 64.
So Curtis drove 64 miles per hour.
Check:
64 miles per hour multiplied by 10 hours:
64 * 10 = 640