Let U = {q, r, s, t, u, v, w, x, y, z}; A = {q, s, u, w, y}; 
and 
List the elements in the requested set.A ? C
A. {w, y}
B. {v, x, w}
C. {y, z}
D. {q, s, u, v, w, x, y, z}
Answer: A
Mathematics
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%
A. 1033
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C. 5
D. 
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What was the sum of the highest and lowest monthly sales in 2006?
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