The target temperature for a laboratory is 68° Fahrenheit

Last updated: 7/21/2022

The target temperature for a laboratory is 68° Fahrenheit. It can vary by up to 4°. If t is the temperature in the laboratory, which of the following inequalities represents this situation? A. |t + 4| ≤ 68 B. |t+ 68| ≤ 4 C. |t - 68| ≤ 4 D. |t-4| ≥ 68