Answer:
After driving, the elevation is 617.5 feet and the temperature is 61 1/20 °F;
A: 502 1/2 feet
Explanation:
After driving: H = 502.5 + 115 = 617.5 feet; T = 63 1/4 - 2 1/5
= 61 1/2 °F ; Part A : 502.5 feet = 502 1/2 feet
[ simple calculation ]