1. The first piece is 22 feet long, the second is 33 feet long, and the third is 66 feet long. 2. The solutions to the inequality -5<x-4<2 are the values of x between -1 and 6. 3. The document provides examples and explanations of linear equations including standard form, graphing lines, finding intercepts, and determining if an equation represents a linear function based on its form.