If a 5-foot tall man casts a shadow of 12 feet when standing on level ground, then the distance from the top of his head to the tip of his shadow is​

Do not comment if you aren’t going to . create a real-life situation and create a system and show how it might be modeled algebraically with a system of equations (or inequalities) show all work include a few sentences explaining the situation, your variables of choice and what each represents, and how you would set it up and solve it algebraically. !

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"