A shade of green paint is to be mixed with 3 parts blue and 2 parts yellow. Ten gallons of green paint are to be mixed. How many gallons of yellow paint must be used?
4
2
5
6 2/3

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?