How did improvements in farming lead to the growth of cities.

Firms use marginal analysis to determine prices by a) changing prices in accordance with information from retailers. b) using comparisons with strong competitors to position prices accordingly. c) examining the effect on revenue of small changes to the price of one item. d) trying to minimize production costs by using better and more efficient methods.

In a person dependent on a drug, occurs when the drug leaves his or her system quickly or for a prolonged period of time. a. addiction b. withdrawal c. independence d. relapse

Three of the following infractions will result in your drivers license being suspended. which will cause it to be revoked? a. racing on the highway b. failing to stop for a school bus c. failing to pay child support d. refusing a breath test