;×+ h where x is the age in months, models this baby's growth. At a later checkup, the baby is 24 inches long, how old is the baby at this checkup?
Show your work and explain your reasoning.

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.