Find the solution of this system of equations. separate the x- and the y-values with a comma. x=2+y 8x-2y=22

Geometry answer picture question pls . reason and statements

Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.

What unit of been sure would be appropriate for the volume of a sphere with a radius of 2 meters