Solve the problem.In the following formula, y is the minimum number of hours of studying required to attain a test score of x: y = 
. How many hours of study are needed to score 83?
A. 4.50 hr
B. 101.11 hr
C. 15.20 hr
D. 1.52 hr
Answer: D
Mathematics
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Convert between English and Metric System of Units.
38 in. = 
cm (Round to the nearest hundredth.)
A. 14.96 B. 125.40 C. 3.17 D. 96.52
Mathematics
Plot the point.(-3, -2)
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The population of a formerly endangered mouse is now on the rise. The population, N, over the last 8 years can be represented with the following graph:
When was the mice population the lowest?
A. At the beginning of the 8 year period. B. Just before the end of the second year. C. During the fifth year. D. Just after the end of the third year.
Mathematics
Write the mixed number as an improper fraction.3
A. 
B. 
C. 
D. 
Mathematics