1. A firm in Australia earns a pretax profit of $A10 per share. It pays a corporate tax of $3 per share (30% tax rate) in taxes. The firm pays the remaining $A7 in dividends to a shareholder in 40% tax bracket. What is the amount of tax paid by the shareholder under the imputation tax system?
2. Two corporations A and B have exactly the same risk and both have a current stock price of $100. Corporation A pays no dividend and will have a price of $120 one year from now. Corporation B pays dividends and will have price of $113 one year from now after paying the dividend. The corporations pay no taxes and investors pay no taxes on capital gains but pay a tax of 30% income tax on dividends. What is the value of the dividend that investors expect corporation B to pay one year from today?

Can someone please explain to me with detailed working out please....?