Apassenger rode the subway 2 blocks west and then 10 blocks south. if all the blocks are the same length, what is the value of the slope of the line from where the passenger began to where he finished? * 2* 5* 10* 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