What is the distance of the midpoint origin? a(4,-8) and b(-9,6)

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?