Solve the problem.A study was conducted to compare the average time spent in the lab each week versus course grade for computer students. The results are recorded in the table below. The linear model for this data is 
where x is the number of hours spent in the lab and y is grade on the test. Use this model to predict the grade of a student who spends 12 hours in the lab. Number of hours spent in labGrade (percent) 
A. 68.7
B. 66.3
C. 76.6
D. 62.3
Answer: B
Mathematics
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A. 15.925 mm B. 15.875 mm C. 158.75 mm D. 159.25 mm E. 168.25 mm
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Provide an appropriate response.Prove that the function f is not one-to-one.f(x) = 
What will be an ideal response?
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Provide an appropriate response.Why is it important to know how to multiply radical expressions before learning to divide them?
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Mathematics