Goodness I keep getting this wrong?

Which expression converts 45 degree to radians

Match the vocabulary to the proper definition. in probability, two events in which 1. conditional probability the outcome of one event is independent of the outcome of a second event. 2. dependent events in probability, two events in which the outcome of one event is dependent on the outcome of a second event. the probability of an event in which the outcome of the event is conditional on the outcome of one or more different events. 3. independent events

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.