Add the following decimals​

Which equation is y = -6x2 + 3x + 2 rewritten in vertex form?

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?

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?