I would imagine that this is "4 quarts in a gallon".
Chat with our AI personalities
Well, darling, the answer to that brain teaser is simply T. Three T's added together equals 3T, because math doesn't have time for your games. So, next time you try to stump someone with a brain teaser, make sure it's a bit more challenging.
4 quarts in a gallon
f = 54
f(x)=5x, g(x)=3x-7 gf(x)= = g(f(x)) = g(5x) = 3*(5x) - 7 = 15x-7 So gf(4) = 15*4-7=53
7g + 4 = 4 subtract 4 from both sides 7g = 0 divide both sides by 7 g = 0