Out of 848 items checked out of a public library, 335 were fiction books, 244 were non-fiction books, and 269 were videos (of any genre). What is the probability that a randomly-selected item was not a video?

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.

M.xyz =radians. covert this radian measure to its equivalent measure in degrees.