Final answer:
The expression ((m - 3 + 4n) × (-8)) is equal to a) (-8m + 24 - 32n).
Step-by-step explanation:
To solve the expression ((m - 3 + 4n) × (-8)), we can distribute the multiplication to each term inside the parentheses:
-8m + (-8)(-3) + (-8)(4n)
Simplifying further:
-8m + 24 - 32n
So, the answer is (-8m + 24 - 32n), which matches option a.