Upset emotional european teenager boy student covers ears with hands, dont want to listen
Sad upset teen curly african american girl in white t-shirt looking at camera, isolated yellow
Sad pensive tired adolescent curly girl in white t-shirt looks at empty space, think
Calm sad offended adolescent african american girl in white t-shirt
Sad tired caucasian teenager girl with big heavy backpack, suffer from hard study
Serious scared sad teen european smart boy covers face with book, read notebook
A customer service representative, seen from behind, wears a headset and works at a computer
Sad crying teen african american girl in white t-shirt hold hands on knee, suffering from pain, sit
Frustrated black teacher holding her head in pain and looking at camera.
Pensive teen curly girl in white t-shirt thinking, scratching head, isolated yellow studio
Portrait of shocked afraid millennial asian woman in yellow t-shirt covers her mouth with hands
Relationships, social networks and surfing in internet
Sad tired caucasian teenager girl and boy pupils with books, backpacks rest on floor
Positive european teenager schoolboy reading book at school
Surprised confused millennial chinese lady student in casual, holding hands on head
Despaired tired caucasian teenager girl pupil puts book on head, suffer from stress
Sad tired bored adolescent african american girl in white t-shirt sit on floor, wants to sleep
Senior worker feeling pain in his back while working at distribution warehouse.
Unhappy tired adolescent african american girl in white t-shirt, wants to sleep
Sad tired teen european girl with backpack covers head with book
Obesity man sadly sitting on bed on vacation in hotel alone without friends having midlife crisis.
Rear view of contemporary teacher in casualwear writing formulas on blackboard
Bearded teacher in casualwear rewriting formulas on blackboard from his copybook
A professional customer service wears a headset and works at a computer in a modern office
Serious teacher pointing at equation on blackboard with piece of chalk
Young mother explaining math to her daughter while homeschooling.
Sports teacher helping black elementary student with his leg during PE class at school gym.
Women embracing each other
