Ineed with these extra credit question that are connected to the study guide. its algebra 1 questions, 4 of them. this is the extra credit part, so can anyone me?

Which expression is equivalent to -5(3x - 6/7)

Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0

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