please help

Insurance. By examining the past driving records of drivers in a certain city, an insurance company has determined the following (empirical) probabilities: If a driver in this city is selected at random, what is the probability that a. He or she drives less than 10,000 miles per year or has an accident? (Type a decimal.) b. He or she drives 10,000 or more miles per year and has no accidents? (Type a decimal.)