Huge blackboard texture chalk drawn with difficult mathematics calculation, economic formula and equations background. Thinking of project ideas and b


Huge blackboard texture chalk drawn with difficult mathematics calculation, economic formula and equations background. Thinking of project ideas and business planning concept.


Size: 6000px × 4000px
Photo credit: © Bulat Silvia / Alamy / Afripics
License: Royalty Free
Model Released: No

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