7. perform the following operations, expressing your answers to the proper number of
significant figures. write the calculator answer first, then the rounded answer.
calculator answer answer rounded to sfs
a. 8.08 x 45.9
b. 4.82
1.372
c. 0.058
72.8

The comparison of the number of atoms in a copper coin the size of a penny with the number of people on earth is made to illustrate which of the following? a. that atoms are indivisible b. that atoms are very small c. that atoms are very large d. that in a copper penny, there is one atom for every person on earth