need help how to do this

Patton's Mail Manufacturing is a company that produces chain mail. Their most popular product is saw-cut metal links that hobbyists can use to make their own creations. The company recently spent $300 on advertising, which they hope to make back quickly. The wire used to produce one ounce of links costs $2, but the finished links sell for $5 per ounce. Eventually, the company will make back its investment and break even. What will their expenses and sales both equal? Write a system of equations, graph them, and type the solution. 500 400 300 Dollars ($) 200 100 100 200 300 400 500 O Weight