How do i solve this math problem step by step (-x/2-7=9) using 2-step equations?

To which set of numbers does the number –5 belong? select all that apply. integers natural numbers rational numbers real numbers whole numbers

Answer each of the questions for the following diagram: 1. what type of angles are these? 2. solve for x. what does x equal? 3. what is the measure of the angles?

At a book fair, joe bought 24 books at 3 for $5 and had $2 left. how much money did he have at first?