please answer fully and length not more one page. Ty merger and acquisition

Imagine there are two identical firms except for their fapital structure. One firm is unlevered, and its equity has a market value of $990. The other firm has borrowed $500, and its equity has a market value of $510. Imagine the risk-free interest rate is 5%, the risk premium is 10%, and the cost of capital is 15%. Does Modigliani Miller Proposition I hold? Justify your answer or Question 2 Why did Beyond Meat Inc. become the best-performing public offering by a major U.S. company in almost two decades