.Net income: 34 Interest expense: 8 number of bond 9,price 20 Depreciation and amortization: 18.2 B Marginal tax rate: 0.3 Cash and marketable securities: 9.8 .Investments: 6.2 ps value:50 Price per common share on the Palestinian Stock Exchange: 13.8 Total number of shares issued: 20 Total number of shares in treasury stock: 2 what is the tax expense? what is EBITDA? what is the enterprise value? what is the EV/EBITDA?