A. A whale is at the surface of the ocean to breathe.
What is the whale's elevation?
b. The whale swims down 300 feet to feed.
What is the whale's elevation now?
C. The whale swims down 150 more feet
more. What is the whale's elevation now?
d. Plot each of the
three elevations
as a point on a
vertical number
line. Label each
point with its
numeric value.​

12.5 feet

step-by-step explanation:

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is

21

jk it's 20

step-by-step explanation: