Answer: 
Step-by-step explanation:
When the scientists detect a signal frequency from the ocean floor, then the depth of submarine =
feet
=
feet
When they dive farther to check the signal, then the depth of the submarine=
feet.
The net change in their elevation =

Answer:
50x-25
Step-by-step explanation:
(12x-6)(4 1/6)
50x-25
Each sheet of wallpaper can get 12/(1/3)=36 pieces, since there're 3 in total, we have 36*3 = 108 pieces
Answer:
b42
Step-by-step explanation:
5/15 depending on what the answers are