PLEASE HELP FIND THE SURFACE AREA OF EACH PRISM ROUND TO THE NEAREST TENTH IF NECESSARY ANSWER QUESTIONS 1,3, 7, AND 9. i will mark brainliest. plz its due in 20 mins

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

Solve the equation for x.3(6x - 1) = 12 i've tried doing the math and i can't find out what i'm doing wrong

What is the x-intercept and y-intercept of the equation 2x+1. 2o