Keywords
2 people, 20-25 years, 40-45 years, african-americans, assistance, caucasian, classroom, complexity, education, formula, further education, head and shoulders, holding, indoors, learning, mathematics, mid-adult man, number, over the shoulder view, people, solution, student, study, teacher, teaching, tuition, university, university student, whiteboard, writing, young adult man, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, u25667007