Answer:
c
step-by-step explanation:
ok the slope of the line is 2
and so by using the formula y1+y2/x1+x2 we can get the ration of each table
the first table is -9+-7/-25+-21
this can be simplified to -16/-46 which is about 0.347
using this formula for each table you can find the answer .
im
too lazy to do the rest
Answer:
Step-by-step explanation:

First let's multiply the 1st equation by 10.

So, we can see that the equations have the same coefficients and that implies they are equal.
So the equation has no solutions for. 
0.5 x 4 = 2 feet / 2 feet in 4 seconds
15 - 2 = 13
New depth: 13 feet
0.4 x 3 = 1.2 feet / 1.2 feet in 3 seconds
13 - 1.2 = 11.8
New depth: 11.8 feet
<em>So</em><em> </em><em>the</em><em> </em><em>ans</em><em> </em><em>is</em><em> </em><em>C</em><em>.</em><em> </em>
<em>hope</em><em> </em><em>this</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>.</em><em>.</em><em>.</em>