Rectangle A measures 10 inches by 8 inches. Rectangle B is a scaled copy of Rectangle A, Select all of the measurement pairs that could be the dimensions of Rectangle B.
U 4 inches by 2 inches
0 20 inches by 16 inches
50 inches by 40 inches
0 1 inch by 0.8 inches
100 inches by 98 inches

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