Nch corporation, which markets cleaning chemicals, insecticides and other products, paid dividends of $2.00 per share in 1993 on earnings of $4.00 per share. the book value of equity per share was $40.00, and earnings are expected to grow 6% a year in the long term. the stock has a beta of 0.85, and sells for $60 per share. (the treasury bond rate is 7% how much would the return on equity have to increase to justify the price/book value ratio at which nch sells for currently?