B and C are correct, A and D are incorrect
101 feet. also -1 isnt an elevation. If you were to draw a line youd put all the negative numbers on the bottom, and positive on the top.
Answer:
x=12/23
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Step-by-step explanation:
I really don't know sorry
The simplified answer is 
If you are dividing powers with like terms you subtract the denominator to the numerator.