adders, Inc. has a net profit margin of $5\mathrm{.}0\%5\mathrm{.}0\%$ on sales of $ $50\mathrm{.}0$$$50\mathrm{.}0$ million. It has book value of equity of $ $40\mathrm{.}0$$$40\mathrm{.}0$ million and total book liabilities of $ $30\mathrm{.}0$$$30\mathrm{.}0$ million. What is$$ Ladders' ROE?$$ ROA? Note: Assume the value of Interest Expense is equal to zero.