frustrated man with math background

3d 40s aback absence adult advertisement anger angry annoyed architecture astonished astonishment background backgrounds black blank break business cafe cafeteria casual caucasian ceiling chair childish clothing color composite computer contemperory copy corporate cut day decor digital divide doodle drawing drawn empty expression face facial floor flooring food forehead frame full furious generated graphic gray hair hand hardwood illuminated illustration image individuality indoors interior irritated lifestyle lights long lunch making male man mark math mature minus office one out person plus question school seat shock shocked snacks space spotlight stool surprised surprising table taken time vignette wall white window wooden workplace wrinkled