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Mathematics 13 Online
OpenStudy (anonymous):

http://img194.imageshack.us/i/page584.jpg/ http://img6.imageshack.us/i/page580.jpg/I attach the lesion and question: I need help check my answer:11) 360-40=320 320/360=8/9 12) 360-110=250 250/360=25/36 13) 3/4 14) 1/2Number 11, I check the key is correct ,12 and 14 no key I don’t know correct or not, number 13 the key is 1, I don’t know how? Can someone help me how to answer 1

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