This Instructional Activity is a part of the Lesson 6, Unit 2, Grade 7. This activity requires students to work with larger numbers, which is intended to encourage students to use an equation and notice the e'ciencies of doing so. It also emphasizes the interpretation of the constant of proportionality in the context. In this case, the constant represents the cost of a single ticket, and makes it easy to identify which singer would make more money for similar ticket sales in a concert series. The last set of questions ask students to interpret the constant of proportionality as represented in an equation in terms of the context.