Welcome to Westonci.ca, where your questions are met with accurate answers from a community of experts and enthusiasts. Get quick and reliable solutions to your questions from a community of seasoned experts on our user-friendly platform. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform.

Robins Doughnuts Limited currently has no debt. If they choose to borrow, they can do so at a rate of 6.4%. The firm's WACC is currently 9.5% and the tax rate is 35%. There are no costs of financial distress.
a) What is the company's cost of equity?
b) If the firm converts to 45% debt, what will its' cost of equity be?
c) If the firm converts to 60% debt, what will its' cost of equity be?
d) What is the company's WACC in part (c)?