Y= –3x + 6
y = 9
what is the solution to the system of equations?
a (–21, 9)
b (9, –21)
c (–1, 9)
d (9, –1)

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол