math question

12/5 is 2.4 in decimal form, and 5^-2 is 1/25, or 0.04. Together they equal 2.44

$\dfrac{12}{5^{-2}}\\ =12\cdot 5^2\\ = 12\cdot 25\\ = 300\\ \color{blue}{\cdot\;\;\;\;\;\cdot\\ \;\smile}$