Answer:

Step-by-step explanation:
As the mean is 20.2 and the standard deviation is 2.4
The range within the first standard deviation is
(17.8,22.6)
This means that we can safely use the range of (18,22) as we cannot confirm whether the other values fall within the range.
Within this range there are

Answer:
6/7 in 1 hour
Step-by-step explanation:
He will use 6/7 in one hours because
1/3 = 2/7
2/3 = 4/7
1 or 3/3 = 6/7
Answer:
Your answer is
B
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Step-by-step explanation:
Answer: Adrian will have to work for 6 hours, she will make $294.
Step-by-step explanation:
42x6=294
Answer:
C.None of these
Step-by-step explanation:
atleast I think