Can you help me solve this, I really don't understand it

A researcher collected statistics on breast cancer patients in the U.S. and Great Britain. She found that the probability of a patient recovering was .70. She found that the probability of a patient being from Great Britain was .82. She also found that the probability of recovering and being from Great Britain was .43. Round answers to four decimal places. a) What is the probability of having recovering given that the person is from Great Britain? Probability is X b) What is the probability of being from Great Britain given that the person recovered? Probability is