Estudiante universitario resolviendo ecuación matemática y bebiendo café, escribiendo en cuaderno - Metraje y vídeo de stock

Closeup of a female hand writing on an blank notebook with a pen. Close-up of a female hand writing on an blank notebook with a pen 4K

Close-up of populating documents HD

Distance education concept, on-line education at home. Schoolgirl video chatting with a teacher at home during the coronavirus epidemic in the city

Office workers are sitting at a table, a woman is writing something in the organizer.

Student writes the abstract prepared for the seminar

Teen boy trying to solve difficult equation in notebook, preparing for math exam

Lady reading files and drinking coffee offered by colleague, flirt on workplace

Detective worker measuring bullet size and entering data in crime scene report

Criminal expert examining victim negatives photo and filling report in office