Roxy$$ Broadcasting, Inc. is currently a$$ low$-$levered firm with a$$ debt$-$to$-$equity ratio of $2/7.$ The company wants to increase its leverage to $7/2$ for debt to equity. If the current return on

assets is $10\%$ and the cost of debt is $8\%,$ what are the current and the new costs of equity if Roxy operates in a world of no$$ taxes?