Answer:
a=4220-2t
This would be if we are finding the altitude of the submarine from the surface of the water(how many meters away from the surface it is). I don't know what it would be if you want to know from the bottom of the ocean.
Answer:
the distance between -2 and 6 is 8
Answer: 1/4
Step-by-step explanation: If you divide both 6 and 24 by 6 you get 6/6=1 and 24/6=4.
Infinitely many solutions
The system shows the same equation, so x and y could be anything
Answer:
12-x
Step-by-step explanation: