HELP! find the value of z

Ajar contains a mixture of 20 black marbles, 16 red marbles, and 4 white marbles, all the same size. find the probability of drawing a white or red marble on the first draw. 125 12 01 next question ask for turn it in

F(x)=5/6x+3 which of the following is true

Of the 304 people who attended a school play, 5/8 were students. how many of the people who attended were students.