The demand function for a product is given by x = D(p) = 1450 - 3p^3, 0<p<7.85 (please note these should both be less-than-or-equal-to signs) (a) Find the number of units sold when the price per unit is $5.75. D(5.75) = 1450 - 3(5.75)^3 = 879.67 Did I set this up correctly? Can anyone confirm this answer? (b) Find the price per unit when 1000 units are sold. How would I set this up? Thanks! J.B.