To write the inequality based on the sentence "The sum of negative 3.2 and 1.5 times a number is at most 8.6", we can break it down as follows:
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The "sum of negative 3.2 and 1.5 times a number" can be expressed as: \(-3.2 + 1.5n\)
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"is at most 8.6" translates to: \(\leq 8.6\)
Combining these parts, we get the inequality: \[ -3.2 + 1.5n \leq 8.6 \]
So, the correct response is: \(-3.2 + 1.5n \leq 8.6\)