This morning, a convenience store had 21 granola bars in stock. the store sold 6 granola bars throughout the day. if the store will receive a shipment of 42 granola bars tomorrow, how many granola bars will it have in stock?

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