Question

If the net force on a 75 - N object is 375 N from the left in what direction will the object move

Answer 1

We really don't care what the size of the force is or what the object weighs.
neither of those numbers has any effect on the answer.

If the net force on an object is FROM the left, then no matter
which way the object is already moving, it will ACCELERATE
to the right. If the object isn't moving (its speed is zero), then
its speed will increase, and it will move to the right.

Answer 2

It would move to the right because the force is being applied from the left.