The correct answer is 1.75 because the equation is p=.50+1.25 which equals 1.75.
Infinitely many solutions.
They ask me that all the time ;)
43% chance because 43% of them are yellow!
The side length has to be between 2 (=9-7) and 16 (=9+7). In both these corner cases the triangle will have collapsed to a line.
So the correct answers are B,C,D and E, and F is a corner case. Theoretically I suppose you have to count F in as a valid answer.
