I hope this help 4 squared equals to 12 and 3 time 12 equal 36 then 36 plus 1 equal 37 so 37 is the output
The first draw is a 75% chance and the second would be a 67%
Victor and Amy 67/21 or 3. 4/21
Cal and Beth 21. 1/2 or 215/10
Beth and Victor 5/6
5/20=x/28 therefor x equals 7 and since the triangles are similar to each other so y =120