4. Consider the following potential events that might have taken place at Vodafone Group Plc on 31 March 2013. For each one, indicate which line items in Vodafone's balance sheet would be affected and by how much. Also indicate the change to Voda- fone's book value of equity. (Ignore taxation.)

a. Vodafone used 200 million of its available cash to repay 200 million of its long- term debt.

b. A warehouse fire destroyed 50 million worth of uninsured inventory.

c. Vodafone used 50 million in cash and 50 million in new long-term debt to pur- chase 100 million in buildings worldwide.

d. A large customer owing 20 million for products it already received declared bank- ruptcy, leaving no possibility that Vodafone would ever receive payment.

e. Vodafone's engineers discover a new manufacturing process that will cut the cost of its flagship product by more than 50%.

f. A key competitor announces a radical new pricing policy that will drastically under- cut Vodafone's prices.