2 is the answer because when you subtract 4 from 6 you get 2
Answer:

Step-by-step explanation:
So we pick one point from the graph
(0, 4)

The sum (+) of 14 and a number (x) is equal to (=) 7.
14 + x = 7
To solve, subtract 14 from both sides.
x = -7
Answer: in picture
Step-by-step explanation: merry
Answer:
18 feet
Step-by-step explanation:
The difference in elevations is ...
-12 -(-30) = -12 +30 = 30 -12 = 18 . . . feet
The ray is 18 feet above the whale.