How would I calculate the below?

A marketing firm would like to test-market the name of a new energy drink targeted at 18- to 29-year-olds via social media. Suppose a study found that39% of adults (18 and older) do not use social media. Suppose the percentage of adults age 30 and older is75%. Suppose that the percentage of the adult population that is either age 18-29 or uses social media is69.2%.

What is the probability that a randomly selected adult is aged 18-29? & What is the probability that a randomly selected adult is 18-29 and a user of social media?