document.write( "Question 255399: suppose C is a subset of D and D is a subset of C. if n(C)=5, find n(D) \n" ); document.write( "
Algebra.Com's Answer #187653 by jim_thompson5910(35256)\"\" \"About 
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If C is a subset of D and D is a subset of C, then C = D. In other words, C and D are the same set. So this means that if n(C)=5, then n(D)=5 also. \n" ); document.write( "
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