Pepper jackie has 12 picks. 1 out of every 4 picks is orange . the rest are green. how many picks are orange?

65% of students in your school participate in at least one after school activity. if there are 980 students in you school, how many do not participate in an after school activity?

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

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.