Thomas finds that his science class needs 24 sets of supplies for the week. Susan counts that her class only needs 19 supplies. What is the relative change
from what Susan needs to what Thomas needs?
(Put your answer as a percentage rounded to 2 decimals.)

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