It would be B. because it's just 7 times 1.5
Answer:
I believe this is a METAPHOR cause you cant really throw your voice as rope.
To find the number of years between 1844 to 2015 you have to subtract.
Lets say that x is the # of years in between 1844 and 2015
Then we have:

After doing the subtraction using a calculator or a pencil and paper, you get that:

So 171 years have passed from 1844 to reach to 2015.
The answer is (4x+3y=4 2x-7=7: 5/2 and y=-2) hope it helps and have a good day!