Does the arrow show a vertex, face, or edge?

It says factor each expression completely 8y+48

Rick is driving to his uncles house in greenville,which is 120 miles from ricks town .after covering x miles rick she's a sign stating that greensville is 20 miles away. which equation when solved will give the value of x. a: x+120 = 20 b: x x120 =20 c: x +20 equals 120 d: x x20= 120

Find the volume of the solid bounded by the plane z=0 and the paraboloid z=1-x^2 –y^2