Answer the question.Use the table of record trout lengths at Yosemite Lake to answer the question. To find the average, add up the values you are interested in and then divide the sum by the number of values. Round your answer to the nearest tenth. 
Find the average length of record trout caught during a weekday.
A. 14.6 in.
B. 72.8 in.
C. 19.8 in.
D. 14.1 in.
Answer: A
Mathematics
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A. 30
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B. 14
in.
C. 130
in.
D. 29
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Graph.f(x) = x2 - 2x - 9
A. 
B. 
C. 
D. 
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Solve the problem.A certain radioactive isotope has a half-life of approximately 850 years. How many years to the nearest year would be required for a given amount of this isotope to decay to 20% of that amount?
A. 274 years B. 1974 years C. 1954 years D. 680 years
Mathematics