Video of a smiling, fair-skinned blonde woman with long hair, wearing a floral blouse, standing in a room with white walls and a chalkboard scribbled with mathematical equations.

Video of a woman with medium breasts in a black shirt with mathematical equations, sitting at a desk with a computer, surrounded by decorative items and posters.

Video of a blonde, fair-skinned woman in a beige blazer, writing in a notebook at a wooden desk. The background includes a wall map and mathematical symbols.