66 2/3
=(66*3+2)/3
=200/3
((200/3)*39)/100
=(7800/117)/100
=78/1.17
=66.7%
not so sure it is right though, but that's what I came up with. hope it helps
Person A could have any SIX dif. people sitting to her left. the person on A's left can have FIVE dif.people sit on his left. that person could have any of the remaining FOUR to her left and so on to the last person. so, there are 6x5x4x3x2x1= 720 possible arrangments.
The square root of 49 = 7 if it is multiplied by 14 and divided by pi, it would equal 31.194, which would be 31.19.
3x2+4(-1)-2(5)2 +4(5)+5=
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6+-4-10+25
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31-14=17