Use the data set {d1, d2, d3, ..., d255} consisting of 255 numbers to answer the following question(s).After sorting the data set (in increasing order from left to right), the first quartile is
A. the number in the 64th position.
B. the average of the numbers in the 64th and 65th positions.
C. the average of the numbers in the 63rd and 64th positions.
D. the number in the 65th position.
E. none of these
Answer: A
Mathematics
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Perform the indicated operation. Simplify your answers. 
+ 
A. 
B. 
C. 
D. 
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Provide an appropriate response.For the function f(x) = 
x - 3, find f(5a).
A. 
a- 3
B. 
a- 3
C. 
a- 15a
D. 
a- 15a
Mathematics
Solve the problem.A hot dog stand sells hot dogs with cheese, relish, chili, tomato, onion, mustard, or ketchup. How many different hot dogs can be concocted using any 3 of the extras?
A. 105 B. 210 C. 840 D. 35
Mathematics
Solve the inequality. Give the solution set in both interval and graph forms.0 < 5x ? 20 
A. (0, 4)
B. [0, 4)
C. [0, 4]
D. (0, 4]
Mathematics