For each of the following pairs of goods, which good would you expect to have more elastic demand?

a. Pairs of Goods More Elastic
b. Demand Required textbook or mystery novels
c. Vanilla ice cream or desserts
d. Gasoline over the next 3 years or gasoline over the next 4 months Pens in general or blue ballpoint pens

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?