Answer: I believe the standard deviation will remain the same, 6, choice A.
Step-by-step explanation: Standard deviation is calkculated based on the difference of each point from the mean. If 10 were added to each score, the mean would also increase by 10. That would mean that the difference between the mean and each score would be exactly the same, leading to an identical standard deviation. Sounds crazy, but that's what numbers do for a living.
Answer:
Step-by-step explanation:
Move 
to the denominator in 
using the negative exponent rule 
Answer:
c) The car dealer's business is expanding rapidly.
Step-by-step explanation:
You can tell because they're selling more and more every month.
Divide both side by 2 ad you get x=80
The answer is D. 25
All that was need to be done was to divide
