Answer if you know the right answer.(this is algebra)

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

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

Abcd is a square. what is the measure of angle bac