What is the approximate percent change in a temperature that went down from 120 degrees to 100 degrees?

The temperature decreased by 120 − 100 = 20 degrees. To find the percent change, divide the decrease by the original temperature: 20 ÷ 120 ≈ 0.167, or about 17%. So the correct choice is “The percent change is approximately 17 percent.”

AI-written and checked against the verified answer.