can you help with these? thank you

Your firm has equity with a book value of $8 billion, debt worth $3 billion, and total assets worth $11 billion. There are 50 million shares outstanding and the current share price is $200. If the market value of debt is the same as its book value, what is the market value of the firm's total assets? A. $8 billion OB.13 billion OC. None of the answers is correct. O D. $10 billion O E $11 billion QUESTION 4 A company has net income of $100 and, depreciation expense of $50. During the year, its accounts receivable balance increased by $40 and its accounts payable balance increased by $50. What is its cash flow from operations? A $160 OB.$150 C.$110. OD. $140 E. $100