The graph showed the relationship between the volume of a rectangle prism and the coupe of a square pyramid with an identical base and height. What is the slope of the line ?

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?