Can y’all help me with this questions

Use the elimination method to find the solution to the system of equations. 2x - 3y = -9 -x + 3y = 6

Graph g(x)=2cosx . use 3.14 for π . use the sine tool to graph the function. graph the function by plotting two points. the first point must be on the midline and closest to the origin. the second point must be a maximum or minimum value on the graph closest to the first point.

Describe how you can act financially responsible.