Ineed i dont understand pls tell me the correct answer and how you got it step by

Landon wrote that 3−2.6=4. which statement about his answer is true?

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

Find the dimensions of the circle. area = 64π in.² r= in.