Please elaborate on this so that I can help you.
Answer:
-189.8 J
Step-by-step explanation:
We are given that f
Force applied=F=35 Ni-37 Nj
Displacement, s=(-8.7m)i-(3.1m)j
We have to find the work done .
We know that
Work done=
Using the formula
Work done=
Work done=
Using 
Work done=-189.8J
Hence, the work done =-189.8 J
After you solve it you get B
(x,y)
y does't change makes it easier
frm 7 to -2
-2-7=-9
distance is 9