Chem
posted by Kiara on .
If there is a sample of pennies that has a mass of 857.2 g. What is the average mass of a penny that is 2.73 g. How many pennies are in the sample?
after you get the answer you would have to(round up to the nearest whole number)

To get the number, round 857.2/2.73 to the nearest whole number.