What is the common point between lines y = -x + 7 and y = 3x + 10?

Can some one me, i’ve been asking for so long

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

The function models the number of accidents