Is 6 hours for $4.80 the same rate as 10 hours for $8?

Using elimination, what is -4x+2y=-12 4x+8y=-24

Which number line correctly shows 0.8 + 0.3?

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?