Answer
The hotel made $\$ 2.31\cdot 10^{8}$ selling the condominiums.
Work Step by Step
Rewrite the given values in the scientific notation
$N\cdot 10^{m},\ 1\leq N<10,\ N$ expressed in decimal notation, and $m$ as an integer.
$110,000=1.1\cdot 10^{5}$
$2100=2.1\cdot 10^{3}$
$ 1.1\cdot 10^{5}\cdot 2.1\cdot 10^{3}\qquad$...apply The Product Rule $a^{m}\cdot a^{n}=a^{m+n}$ to solve $10^{3}\cdot 10^{5}$.
$=1.1\cdot 2.1\cdot 10^{5+2}\qquad$...simplify.
$=2.31\cdot 10^{8}$
