Price discrimination refers to A. the practice of charging different prices to different buyers for goods of like grade and quality. B. a conspiracy among firms to set prices for a product or service. C. an arrangement a manufacturer makes with a reseller to handle only its products and not those of a competitor. D. the practice of charging a very low price for a product with the intent of driving competitors out of business.

Acompany manufactures x units of product a and y units of product b, on two machines, i and ii. it has been determined that the company will realize a profit of $3 on each unit of product a and $4 on each unit of product b. to manufacture a unit of product a requires 7 min on machine i and 5 min on machine ii. to manufacture a unit of product b requires 8 min on mchine i and 5 min on machine ii. there are 175 min available on machine i and 125 min available on machine ii in each work shift. how many units of a product should be produced in each shift to maximize the company's profit p?