Answers

2014-06-14T10:04:01+08:00
50-((18+26)-2)=8 so therefor, 8 students in the class are not enrolled in the band neither in the chorus.
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2014-06-14T11:00:59+08:00
50-(26+18)2=4      so 4 student not enrolled.
   
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Can i ask, how come it is 4? 26 and 18 is 44 then multiply it by 2 is 88 then subtract it to 50 then that would be -33? Just asking :)