Find the probability that a randomly selected person from

Question

In a random sample of 100 adults, we found that 36% access the Internet at work; 44% access the Internet at home; and 20% access the Internet at both home and work. Find the probability that a randomly selected person from this sample access the Internet

1. only at work?
2. only at home?
3. at work OR home?
4. at work AND home?
5. neither at home nor at work?

Please explain