Restex has a debt-equity ratio of 0.82, an equity cost of capital of 15%, and a debt cost of capital of 9%. Restex's corporate tax rate is 38%, and its market capitalization is 250 million.

a. If Restex's free cash flow is expected to be 8 million one year from now and will grow at a constant rate, what expected future growth rate is consistent with Restex's current market value? b. Estimate the value of Restex's interest tax shield.