Biologists found a new species of pale shrimp at the
world's deepest undersea vent, the Beebe Vent Field.
The vent is 3.1 miles below the sea's surface.
Approximately how many kilometers below the sea's
surface is the vent? (1 kilometer = 0.6214 miles)
A) 2
B) 3
C) 3
D) 5

Solution:

Given that,

The vent is 3.1 miles below the sea's surface

To find: kilometers below the sea's  surface is the vent

From given,

1 kilometer = 0.6214 miles

Use the above conversion factor and convert 3.1 miles to kilometers

From above,

Therefore,

Thus, approximately 5 kilometers, below the sea's  surface is the vent

correct answer:

b.(19,-2)