How does the article's introduction in paragraph 1.

Which two statements are true about a system? 1. a system is a group of objects analyzed as one unit. 2. energy that moves across system boundaries is conserved. 3. there’s only one way to define the boundaries of a system. 4. all systems are made by humans.

List three questions that will you determine what you do well

The solutions to the inequality y ≤ 2x − 4 are shaded on the graph. which point is a solution? p