document.write( "Question 1005146: Let set C = {even numbers between 1 and 99} and set D = {numbers between 1 and 150 that are evenly divisible by 10}.\r \n" );
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document.write( "What is C ∩ D? (2 points) \n" );
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document.write( " {10, 20, 30, 40, 50, 60, 70, 80, 90} is the answer but I don't know why \n" );
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