Languages homework help

For the question’ Fan Plc is a publicly traded firm. The market value of its equity is $70 million and its debt $30 million. The yield to maturity of the debt is 5%, the shareholders require a 20% return, and the company pays 30% corporate tax. They have recently decided to repurchase $10 million worth of equity, and finance the repurchase through the issuance of new debt’, could you help me discuss that whether this change in capital stucture affect the market value of the firm or not?Thank you very much.