12. ••

(a) The largest temperature drop recorded in the United States in one day occurred in Browning, Montana, in 1916, when the temperature went from 7 °C to −49 °C. What is the corresponding change on the Fahrenheit scale?

(b) On the Moon, the average surface temperature is 127 °C during the days and

−183 °C during the nights. What is the corresponding difference on the Fahrenheit scale?