PLEASE HELP NEEDS TO BE FINISHED QUICK. the fancy restaurant MacKenzie ate at was having a sale so her dinner was 80% the original coat. The original cost of her dinner was 20.00 what is the sale price

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. !

Lv beethoven software supplies customized software to a managed healthcare system. lv beethoven software's costs for the software is $1,723,000. lv beethoven software sells the software to the healthcare system for $3,816,981.10. overhead expenses are estimated at 47% of the selling price. what is lv beethoven software's net profit to the nearest dollar?

State one method by which you can recognize a perfect square trinomial.