Answer:
-3
Three feet below the initial elevation
Step-by-step explanation:
The initial elevation is 224 feet.
We take descent to be negative and ascent to be positive.
The numerical addition expression is

We simplify this to obtain:

The negative sign means Sally is 3 feet below his initial elevation
Answer:
greater
Step-by-step explanation: 45 and 40
it would be convenient if you actually give us the equation
Answer:
600 feet
Step-by-step explanation: