The sum of the exterior angles of a convex polygon, one angle at each vertex, is equal to how many degrees?

Which statement best describes the polynomial

Which shows the pre image of triangle xyz

He mass of a single atom of carbon can be found by dividing the atomic mass (12.01 g) by 6.022 x 10^23. which is the mass of a single carbon atom, correctly written in scientific notation with the correct number of significant figures?