The answer is C.50. That is the answer.
It should take 2.2 hours, since 5.5 / 2.5 = 2.2.
90 degree rotation clockwise : (a,b) --> (b,-a)
so... (24,-15) --> (-15,-24) is a 90 degree clockwise rotation
I think you just divide the 130 ft by the 40 ft = 3.25 ??
