A company's profit from producing x tons of polyurethane is P(x) : 3 √√x³ - 4x + 30 thousand dollars (for 0 ≤ x ≤ 10). Find = Χ · P'(5) and interpret your answer. (Round your answer in thousands of dollars to two decimal places.) When producing 5 tons, profit ---Select--- by about thousand dollars for each additional ton.