Mackenzie is playing a game with friends. Her score at the end of round one was 27 points. In round two, she gets the question wrong and loses 75 points. What equation can Mackenzie use to find the number of points she has at the end of round two?

If chord ab is congruent to chord cd, then what must be true about ef and eg?

Which of the following is not a subset of {1,2,3}?

Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14