Answer
2
Work Step by Step
$\frac{(-3)(-2)+12}{-1(-4-5)}$ $\longrightarrow$resolve expression in parenthesis
=$\frac{(-3)(-2)+12}{-1(-9)}$ $\longrightarrow$multiply
=$\frac{6+12}{9}$ $\longrightarrow$simplify numerator
=$\frac{18}{9}$ $\longrightarrow$divide
=$2$
