Describe the number 52 in another way

Use set builder notation to represent the following set: { -3, -2, -1, 0}

Match each statement with its corresponding value for the system below: y = -2(3)x and y = 9x - 2 1. the number of points of intersection. -2 2. the x-coordinate of the solution. 1 3. the y-coordinate of the solution. 0

Which number produces a rationale number when multiplied by 1/5