Solve. Round to the nearest tenth if necessary.Before taking a typing course, Ian could type 28 words per minute. By the end of the course, he was able to type 82 words per minute. What was the percent increase?
A. 65.9%
B. 192.9%
C. 34.1%
D. 74.5%
Answer: B
Mathematics
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A. 
B. 
C. 
D. 
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Find the length of the arc intercepted by the given central angle ? in a circle of radius r.? = 
, r = 78.2 m
A. 52.1 m B. 117.3 m C. 163.8 m D. 368.5 m
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Find the sum of the sequence.
A. 66 B. 132 C. 90 D. 42
Mathematics
Solve the rational inequality and graph the solution set on a real number line. Express the solution set in interval notation.
< 0
A. (-8, 1)
B. (-?, -8)
C. (-?, -8) or (1, ?)
D. (1, ?)
Mathematics