Please help me

A store gathers some demographic information from their customers. The following chart summarizes the age-related information they collected: Age Number of Customers 60 58 One customer is chosen at random for a prize giveaway. Please enter reduced fractions What is the probability that the customer is at least 30 but no older than 60? What is the probability that the customer is at least 50? What is the probability that the customer is either at least 60 or younger than 40