When patricia receives a message from gary, she wants to be able to demonstrate to sue that the message actually came from gary. what goal of cryptography is patricia attempting to achieve?

The typical consumer's food basket in the base year 2015 is as follows: 30 chickens at $4 each 10 hams at $5 each 10 steaks at $8 each a chicken feed shortage causes the price of chickens to rise to $5.00 each in the year 2016. hams rise to $7.00 each, and the price of steaks is unchanged. a. calculate the change in the "cost-of-eating" index between 2015 and 2016. year cost of the basket 2015 $ 2016 $ instructions: enter your responses rounded to one decimal place. the official cost-of-eating index has by %. b. suppose that consumers are completely indifferent between two chickens and one ham. for this example, how large is the substitution bias in the official "cost-of-eating" index? the in the cost-of-eating index is %. the of inflation in the cost of eating reflects substitution bias.

Jennifer purchased a house in a brand new development in the outskirts of town. when her house was built, the nearest fire department was nearly 20 miles away. as her neighborhood developed, the density of the community called for a new fire department 1.5 miles away. what effect will the new fire station have on her homeowners insurance premium? a. a new fire department will be more demanding on local taxes. her annual premium will go up. b. the location of a fire department has no bearing on the value of her house. her annual premium will stay the same. c. the new fire department will reduce the risk of financial loss in her home. her annual premium should decrease. d. with a fire department so close (less than 5 miles), financial risk on jennifer’s home practically disappears. she will not need to pay insurance anymore.

Which of the following are considered needs? check all that apply