This Instructional Activity is a part of the Lesson 2, Unit 4, Grade 7. Students use the percent formula and algebraic reasoning to solve a percent problem in which they are given the part and the percent. Zoey inflated 24 balloons for decorations at the middle school dance. If Zoey inflated 15% of the total number of balloons inflated for the dance, how many balloons are there total? Solve the problem using the percent formula, and verify your answer using a visual model.