Answer:
a)

b) The object will move in the east direction
Step-by-step explanation:
a) The net force is given by the vector sum of the given forces:

Where:
F₁ = the west force = 20 N
F₂ = the est force = 60 N
Taking the east direction as the positive direction we have:

Hence, the net force is 40 N.
b) Since the east force is greater than the west force, the object will move to the east.
I hope it helps you!