Consumers' Surplus The demand function for a certain model of Blu-ray player is given by

[tex]p=\frac{450}{0.5x+2}[/tex]

where p is the unit price in dollars and x (in units of a thousand) is the quantity demanded per week. What is the consumers' surplus if the selling price is set at $150/unit? (Round your answer to the nearest dollar.)
$_____