Final answer:
The coldest place on record in the United States was in Alaska in 1971, with a temperature of 80°F below zero. The integer representation of this temperature is -80.
Step-by-step explanation:
The coldest place on record in the United States was in Alaska in 1971, with a temperature of 80°F below zero. When writing this temperature as an integer, we can use the negative sign to represent that it is below zero. Therefore, the correct answer is option a. -80.
(Or)
The coldest place on record in the United States was in Alaska in 1971, where the temperature reached 80°F below zero. To write this temperature as an integer, you express it as a negative number because it is below zero. Therefore, the correct answer is a. -80.