Are these functions inverses of each other?

Simplify 5 square root of 7 end root plus 12 square root of 6 end root minus 10 square root of 7 end root minus 5 square root of 6 . (1 point) 5 square root of 14 end root minus 7 square root of 12 5 square root of 7 end root minus 7 square root of 6 7 square root of 12 end root minus 5 square root of 14 7 square root of 6 end root minus 5 square root of 7

Which equation represents a line that is parallel to the line whose equation is 3x-2y=7( show all work)

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two