Respuesta :
Answer:
12ft
Step-by-step explanation:
Because 20-8=12...
Answer:
They are -12 ft or 12 ft below the surface of the water
Step-by-step explanation:
20 feet under the surface of the water
-20
ascends 8 feet
+8
-20+8 = -12
They are -12 ft or 12 ft below the surface of the water