Lowest term fraction 4/12 9/15 2/4 5/6

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. !

Simplify the expression 10/11(22z) + (a+5) -1

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?