Solve using LINGO, and make sure to show the syntax and output written

A monopolist can purchase up to 17.25 oz of a chemical for $10/oz. At a cost of $3/oz, the chemical can be processed into an ounce of product 1; or, at a cost of $5/oz, the chemical can be processed into an ounce of product 2. If x1 oz of product 1 are produced, it sells for a price of $30 x1 per ounce. If x2 oz of product 2 is produced, it sells for a price of $50 2x2 per ounce. Determine how the monopolist can maximize profits.