Extreme Temperatures. The hottest temperature ever recorded in the United States was 134⁰F, which occurred at Greenland Ranch, California, in Death Valley on July 10, 1913. The coldest temperature ever recorded in the United States was -80⁰F, which occurred at Prospect Creek Camp, Alaska, in the Endicott Mountains on January 23, 1971. Determine the difference between these two temperatures.

and evualuate the expression:
(-900)÷(-4)?

Question

Extreme Temperatures.    The hottest temperature ever recorded in the United States was 134⁰F, which occurred at Greenland Ranch, California, in Death Valley on July 10, 1913. The coldest temperature ever recorded in the United States was -80⁰F, which occurred at Prospect Creek Camp, Alaska, in the Endicott Mountains on January 23, 1971.  Determine the difference between these two temperatures. 

and evualuate the expression:
(-900)÷(-4)?