To determine the direction the book will move, we can analyze the forces acting on it.
The pushing force applied to the right is 7 N, and the frictional force opposing that motion (to the left) is 3 N. We can calculate the net force acting on the book:
Net force = Pushing force - Frictional force Net force = 7 N (right) - 3 N (left) = 4 N (right)
Since the net force is 4 N to the right, the book will move to the right.
Therefore, the correct response is: The book will move to the right.