Question

1. $(-11) - {(-18) div (-9)}^2 cdot (-8)$

Explanation:

Step1: Solve inner division

$(-18) \div (-9) = 2$

Step2: Calculate the squared term

$2^2 = 4$

Step3: Subtract inside the brackets

$(-11) - 4 = -15$

Step4: Multiply by the final term

$-15 \cdot (-8) = 120$

Answer:

120