Which equality statement is true?
a) 25 = −[−(25)]
b) −9 = −(−9)
c) −14 = −(−14)
d) −7 = −[−(7)]

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