Let U = {21, 22, 23, 24, ...}, A = {21, 22, 23, 24, ..., 40}, 
and 
Use the roster method to write the following set.C'
A. C' = {21, 23, 25, 27, ...}
B. C' = {21, 22, 23, 24, ...}
C. C' = {22, 24, 26, 28, ...}
D. C' = {21, 23, 25, 27, ..., 39}
Answer: A
Mathematics
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B. 
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x + 
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C. 
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= 
+ 
. Do not use a calculator.- 
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x1.6
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x5
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