Write a function `country_change()` that takes in a country's name, # two (numeric) years, and the `life_exp` dataframe as parameters. # it should return the phrase: # "between year1 and year2, the life expectancy in country went direction by # some_years years". # make sure to properly indictate the direction as "up" or "down"

A911 dispatcher is the sole sender of messages to all police officers. while on patrol, officers communicate with the dispatcher who, in turn, relays messages to other officers. the officers do not communicate directly with one another. this illustrates a network.

Under which key category do the page up and page down keys fall? page up and page down keys fall under the keys category.

Stops: using the information learned in this course, explain three things you will not do when driving. a. b. c. explain why you will not do these things when driving. starts: using the information learned in this course, explain three things you will do when driving. a. b. c. explain why you will do these particular things when driving. explain one thing you will stop doing as a passenger. explain one thing you will start doing as a passenger.