Please help me I need the answer

The step function g(x) is defined as shown.what is the range of g(x)? ***answer choices in picture.

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

What is the surface area of the sphere?