If you have a fraction, take one number and put a different number on top or underneath, for example if you have 2 cats and 3 dogs, the ratio from cats to dogs would be 2:3 but if you did 2 cats to the total number of animals, you would add 2 and 3 and get 5, so the ratio would be 2:5.
My guess is he gets heads about half the time
2.5 weighs more. It’s a greater number than 2.48
The answer is 27, but I might be wrong
The answer would be 17n+6.