Easton bought eighteen 49-cent stamps for first-class letters and a book of twenty 34-cent stamps for postcards. So far, he has used [i]f[/i] 49-cent stamps and [i]p[/i] 34-cent stamps. Write a simplified expression for the total value in cents of all the stamps Easton has left.

[list=1] [*]Write an expression with parentheses that represents the value of all the stamps Easton has left. [*]Distribute as needed. [*]Combine like terms. [/list] This applet is provided by Walch Education as supplemental material for their mathematics programs. Visit [url="http://www.walch.com"]www.walch.com[/url] for more information on their resources.

When Adam goes on a run, he typically averages a speed of 6 mph. The following graph shows how many miles he travels depending on how long he runs. Describe the graph’s slope and explain what this reveals about Adam’s running. Then describe the domain and explain why it is limited.

[list=1] [*]Describe the slope of the line. [*]Explain what the slope of the line reveals about Adam’s running. [*]Describe the domain. [*]Explain why the domain is limited. [/list] This applet is provided by Walch Education as supplemental material for their mathematics programs. Visit [url="http://www.walch.com"]www.walch.com[/url] for more information on their resources.