A monopolist has a constant marginal cost of $2 per unit and no xed costs. He faces separate markets in the U.S. and England. He can set one price p1 for the American market and another price p2 for the English market. If demand in the U.S. is given by Q1 = 8,400-700p1,and demand in England is given by Q2 = 5,000-500p2; then the price in America will: