Davis was to attach a scanner to his computer. how will he do this

Consumer surplus is: the difference between the price of a product and what consumers were willing to pay for the product. the difference between the discounted price of a product and its retail price. the difference between the price paid by consumers and the price required of producers. the difference between the price of a product and consumers' valuation of the last unit of the product purchased.

Amanda works as an industrial designer

Paying attention to the purpose of her speech, which questions can she eliminate? a. 1 and 2 b. 3 c. 2 and 4 d. 1-4