Find the length of side AB Give your answer to 1 decimal place

Which point on the x-axis lies on the line that passes through point c and is parallel to lino ab?

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

How can you find the mean absolute deviation (mad) for this set of data?