A firm has a debt-to-equity ratio of 1.00. Its cost of equity is 12%, and its cost od debt is 6%. If there are no taxes or other imperfections, what would be its cost of equity if the debt-to-equity ratio were 0?

I believe the answer is 9%. I really need help with part 2 please.

(Part 2) Using the information from the question immediately above, what is the market value of equity if the market value is currently $1,000,000 and the cost of equity (levered) is 10.5%?