If x = 34, y = 53, and the measure of ac = 4 units, what is the difference in length between segments ab and ad? round your answer to the nearest hundredth

Atest consists of 10 multiple choice questions, each with 5 possible answers, one of which is correct. to pass the test a student must get 60% or better on the test. if a student randomly guesses, what is the probability that the student will pass the test?