156/4=39 miles per gallon. 39*12 gallons is 468 miles, and 6 gallons is 234.
(7/2,-7) ther I hope it help
It is A. 2n/15. You can think of n as the books
⇒ Choose three values for 
and substitute in to find the corresponding 
values.
Answer:
The mean is 0.32 and the standard deviation is 0.0122.
Step-by-step explanation:
