Teacher solving mathematical equation — Stock photos

"Teacher solving mathematical equation" is an authentic stock image by astrakanimages. It’s available in the following resolutions: 1600 x 1067px, 2600 x 1733px, 5700 x 3800px. The minimum price for an image is 49$. Image in the highest quality is 5700 x 3800px, 300 dpi, and costs 449$.