Write a comparison problem you can solve using addition or subtraction. draw a bar model to represent the situation. describe how the information in the bar model is related to the problem.

Which is the most efficient first step to solve x in the equation 3.7x - 18 = -4.3x -34 a. add 3.7x to both sides of the equation. b. add 4.3x to both sides of the equation. c. subtract 18 from both sides of the equation. d. subtract 34 from both sides of the equation.

Solve the system of equations. y= 2x y= x^2 - 15

Find the vertex of the function given below y=x^2-6x+1