Answer:
x=139
Step-by-step explanation:
angles on a straight line add up to 180 degrees
Answer: 64.8 mph
Step-by-step explanation:
Given
Arriving time is 6 hours
return time is 4 hours
The average speed of returning 81 mph
Distance traveled while returning

the average speed of the entire trip is

The correct answer is C. 2 3/8 yd.
I hope that helped you! c: