Can someone please help me with Probability? Only answer if you know

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?

Afootball is throw by a quarterback to a receiver

Describe the symmetry of the figure. identify lines of symmetry, if any. find the angle and the order of any rotational symmetry.