For the following system, if you isolated x in the second equation to use the substitution method, what expression would you substitute into the first equation? 3x + y = 8
-x - 2y = -10

Can someone me with the property questions for 12 13 and 14 plz

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

Pls brainliest will be awarded if answer is correct