A survey asks students if they would like to go to the beach, play volleyball, or swim. Students may choose more than one option. Explain the different categories that could result from the survey.

What is the difference between the equations of a vertical and a horizontal line?

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field