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:
its A
Step-by-step explanation:
Answer:
7a-12
Step-by-step explanation:
explanation is in the pic.
if it helps don't forget to like and mark me down
Answer:
False
Step-by-step explanation:
y = -3× - 2
4 = -3(2) - 2
4 = -6 - 2
4 = -8
Answer:
It's 0.5x10^3
Step-by-step explanation: A number in scientific notation has to be between 1 an 10. It can't be less than one or 10.