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Funny senior grey-haired teacher with mustache, wearing eye glasses and a classic suit, writing with a chalk on a school blackboard at a lecture or lesson, vector cartoon illustration on white
Business adviser analyzing financial figures denoting the progress in the work of the company
Sales man making a proposal
View from above. Businesswoman showing pencil on laptop screen. Businessman listening to explanations and takes notes. Teamwork. On table, smartphones, digital tablet, paper, notebook, cup of coffee.
Did you know speech bubble on yellow background

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