At rc edwards middle school, the probability that a student takes technology and spanish is 0.087. the probability that a student takes technology is 0.68. what is the probability that a student takes spanish given that the student is taking technology?
select one:
a. 7.8%
b. 68%
c. 13%
d. 8.7%

Four airplanes carrying a total of 400 passengersarrive at the detroit airport. the airplanes carry, respectively,50, 80, 110, and 160 passengers.a) one of the 400 passengers is selected uniformly at random.let x denote the number of passengers that were on theairplane carrying the randomly selected passenger. find var(x)for x as given in the problemb) one of the 4 airplane drivers is also selected uniformly atrandom. let y denote the number of passengers on the chosen driver’s airplane. find var(y) for y as given in the problem

Describe the domain and range of y=2(3)^x-2+5

Will give brainliestbased on the topographic map of mt. st. helens, what is the contour interval if the volcano height is 2,950 m?