If the shovel makes an angle of 65° with the flat and level ground, then Jenna is pushing straight downward with a force of 750cos (90-65)° Newtons and simultaneously pushing along the ground surface with a force of 750sin (90-65)° Newtons.
The horizontal component of the force is 750sin 25° or 316.9636963 Newtons.
The vertical component of the force is 750cos 25° or 679.7308403 Newtons.