Question 1177501
this is 8C2=28 ways
1-2/3/4/5/6/7/8
2-3/4/5/6/7/8
3-4/5/6/7/8
4-5/6/7/8
5-6/7/8
6-7/8
7-8
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8 ways to choose the first phone and 7 ways to choose the second once the first is chosen=8*7=56 ways.