Answer
$40,000$
Work Step by Step
(i) Scientific notation has the form $a(10^n)$, where $1 \le a \lt 10$ and where $n$ is an integer.
(ii) $\frac{a^{m}}{a^{n}}=a^{m-n}$
Write each number in scientific notation to obtain:
$=\dfrac{4.8(10^{2})}{1.2(10^{-2})}$
Divide $4.8$ and $1.2$ together and the powers of 10 together to obtain:
$=\dfrac{4.8}{1.2} \cdot \dfrac{10^2}{10^{-2}}
\\=4 \cdot 10^{2-(-2)}
\\=4 \cdot 10^{2+2}
\\=4(10^4)
\\=40,000$
