Please help me on the following questions;

How many moles are found in 2.06 x 10^23 molecules of carbon monoxide?

How many moles are found in 8.70 x 10^25 atoms of Zinc?

How many moles are found in 1.44 x 10^22 formula units of salt?

How many moles are found in 3.00 x 10^23 atoms of krypton?​