Lorimar Watch Company manufactures travel clocks. The daily marginal cost function associated with producing these clocks is

C'(x) = 0.000009x2 - 0.009x + 8

where C'(x) is measured in dollars/unit and x denotes the number of units produced. Magagement has determined that the daily fixed cost incurred in producing these clocks is $120. Find the total cost incurred by Lorimar in producing the first 500 travel clocks/day