Answer:
C.
D.
Step-by-step explanation:
We are given that
n=18
Mean, 
Standard deviation, 
c.



Using the formula



D.




I believe if I did the expression correctly, the solution is 1
Answer:
The median is 2 lower quartile is 11 and upper quartile is 6
Step-by-step explanation:
hope this helps
1/5 (18-11) I believe this is what you mean?
Answer:
The question = (7^3)*(7^x)
When multiplying two exponents with the same base, all you do is add the exponents together and keep the same base
Therefore,
(7^3)*(7^x) = 7^(3+x)
Step-by-step explanation:
7^3+x is the answer