Which function represents a reflection of f(x) =3/7 (2)x over the x-axis?

What is the exact area of a circle with a diameter of 50 centimeters? a.87.9 square centimeters b.379.9 square centimeters c.1962.5 square centimeters d.4923.5 square centimeters

Will used 20 colored tiles to make a design in art class. 5/20 of his tiles were red. what is an equivalent fraction for the red tiles?

Is the point (0, 8) on the x-axis or y-axis? how do you know?