The nearest integer would be 8.
The answer is 250
100/2 = 50
50 * 5 = 250
Think of the given points as endpoints of vectors.
The point (3, 1) is the terminus of the vector 3 i + j.
The point (-4, 2) is the terminus of -4 i + 2 j.
By the "triangle rule" for vector summation, the vector starting at (3, 1) and ending at (-4, 2) is the difference between these two vectors.
(-4 i + 2j) - (3i + j) = -7 i + j
What you have there is:
10,000,000,000 + 9,000,000,000
Now, 1,000,000,000 is 1 billion.
This means that the 9 represents 9 billions.
122.57 ×4=490.28
Total was 555.28 which would be a difference of 65.00
136.71 ×4=546.84
Total was 585.34 which would be a difference of 38.50
Subtract the two differences which is $26.50
