2. What must be included in an algebraic expression?
A an equals sign
B at least one variable
C one or more numbers
Dan operation such as addition

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