Question

1. $5 \times (-8) - (10 - (-7))$

Explanation:

Step1: Calculate innermost parentheses

$10 - (-7) = 10 + 7 = 17$

Step2: Compute the multiplication

$5 \times (-8) = -40$

Step3: Subtract the two results

$-40 - 17 = -57$

Answer:

$-57$