Ключевые слова: achievement, advert, analysis, arrow, ascending, background, black, blackboard, blank, board, business, cash, chalk, chalkboard, chart, concept, copy, curve, data, design, diagram, dollar, drawing, education, floor, fluctuating, geometrical axes, grade, graph, graphic, growth, handwriting, income, increase, increase in value, inflation, information, line, market, mathematics, money, pattern, presentation, price, sign, sketch, statistics, symbol, texture, up,