Which set of numbers forms a right triangle? A: 2, 1, 4, 7 B: 8, 10, 12, C: 8, 15, 17 D: 3, 4, 4.5, 5.3

1. 1/9 since you take all the "a"s in the words which is 2/18
2.2/9 same thing as above
3.18/18 since there is no "O" it's a trick question
4.3/9
5.5/6 since you don't count 6
6.1/2 and 1/2 coins are always 1/2 unless you flip twice
7.5/13
8.1/2 because 1,3,5 odd 2,4,6 even 
Hope that helps