James invested $4,000 in his college fund. Several years later he had earned $2,240 in interest at a simple interest
rate of 8%. How long was James money invested in the
college fund?

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?