If you are not TODORULES or adienjrubino do not answer this question of what is the hardest math problem in the world

Through non-collinear points there is exactly one plane.

Witch represents the inverse of the function f(x)=1/4x-12

Aroulette wheel has 38 slots in which the ball can land. two of the slots are green, 18 are red, and 18 are black. the ball is equally likely to land in any slot. the roulette wheel is going to be spun twice, and the outcomes of the two spins are independent. the probability that it lands one time on red and another time on black in any order is(a) 0.5 (b) 0.25 (c) 0.4488 (d) 0.2244