An elevator is on the 20th floor. it goes down 11 floors and then up 5 floors .what floor is the elevator on now.

Airline passengers arrive randomly and independently at the passenger-screening facility at a major international airport. the mean arrival rate is 10 passengers per minutes. compute the following probabilities. p(x = 4) p(x > 11)

Of the ones listed here, the factor that had the greatest impact on the eventual destruction of native americans' ways of life was the development of the a) automobile. b) highway. c) railroad. d) steamboat.

What are the coordinates of the midpoint of ab? ,1/2) /2,-1) ,-3/2) /2,-2)