Caroline is planting flowers in her garden. She plans her first seven flowers in four minutes. After 12 minutes, she has planted 21 different flowers. Which equation represents this direct variation?

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?