Aeris reads the temperature of a liquid in a lab experiment. The temperature of the liquid is 7.2ºF. After 5 hours, she reads the temperature of the liquid again. The temperature of the liquid is now −1.6°F.

Aeris plots the points on a number line to determine the temperature change between these two readings.

How much did the temperature decrease?

Enter your answer as a decimal in the box.

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Answer:8.8 (-8.8’F)Step-by-step explanation:What we know:How to solve:Process: