What are the domain and range of the real-valued function f(x)=2/x?

Aweekly newspaper charges $72 for each inch in length and one column width. what is the cost of an ad that runs 2 column inches long and 2 columns wide? its not 288

Solve the equation: x - 9 = -6 + 5 a. 21 b. 7 c. 14 d. 2

The graph shows how many words per minute two students read. drag to the table the unit rate that matches each graph.