Help with math homework, show all work please! (All problems, I know it’s easy, I’m just behind on homework and don’t have time to complete)

Simplify the algebraic expression 8y-2(y+4)

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? 0.62 0.78 0.84 0.96

Each unit cost 14p, how much would 942 units cost?