ID 964357234925 © Allvisionn | Megapixl.com
Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
adult algebra background blackboard board calculate casual caucasian chalkboard class classroom college concept cool education equation fashion formula guy handsome knowledge lesson lifestyle male man math mathematical mathematics number person portrait professor school science serious student study teacher theory trendy trigonometry university white write young