### Home > AC > Chapter 6 > Lesson 6.1.1 > Problem 6-8

6-8.

Write expressions to represent the quantities described below.

If Thompson Valley High School has

students and if Erwin Middle School hasfewer students, how many students does Erwin Middle School have? If

*w*represents the width of a rectangle and if its length is twice its width, how long is the rectangle?Follow the steps in part (a).

When Mr. Van Exel bought his laptop, he paid

more than three times the amount he paid for his camera. If he paid *c*dollars for his camera, then how much did he pay for his laptop?Identify the important information in the word problem.

Follow the steps in part (a).

cost of the laptop