1) 25/7*3/10=115/14:x
115/14:x=15/14
x=115/14*14/15
x=23/3 отв: D
2) 8*6000000=48000000cm=480km отв: С
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1) 25/7*3/10=115/14:x
115/14:x=15/14
x=115/14*14/15
x=23/3 отв: D
2) 8*6000000=48000000cm=480km отв: С