The talbot Corp common shareholder anticipate receiving a $$2\mathrm{.}20$ per share dividend next

year. Analyst predicts that the dividends will continue to grow at a rate of $10\%.$ Given the

firm's stock is trading for $$50.$ should Talbot decide to issue new common stock, then it

would incur a cost of $$7\mathrm{.}50.$ Calculate the cost of retained earning and cost of common

stock.