Does y vary directly with x? If it does, what is an equation for the direct variation?

Which strategy is used by public health to reduce the incidence of food poisoning?

Idon't get undoing if its pass adding and subtracting so can someone ? x-2 over 5 = 18

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