which of the following equasions is properly balenced?
a. 2h^2 + n^2 > 2nh^3
b. 3h^2 + 3n^2 > 3nh^3
c. 3h^2 + n^2 > 2nh^3
d. 2h^2 + 2n^2 > 3nh^3