The temperature was -12 degrees Fahrenheit. Then the temperature went up 3 degrees per hour for 4 hours. What was the temperature, in degrees Fahrenheit, after 4 hours?
A) - 24
B)-9
C) -5
D) 0

The bolo cavern outside of vandalia is 421 ft below sea level. a little more than75 miles away. mt owens is 7295 feet above sea level. what is the difference in elevation between the bolo cavern and mt owens?