Cow is dumb plz help me plz plz plz

The correct answer is 36 - there are 36 more beef cattle on the farm than dairy cattle. We can work this out by multiplying 16 by 3 to get 48. 48 take 12 is 36. 16 is one fourth, 24 is two thirds, which means you then need to divide this by two to get 12, which means that 12 is one third.

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.