1 a.fv=$75,000 n=15 i/y=8%pv=0 答pmt=$2762.21 1b.fv=$75,000 n=15 i/y=8%pmt=0 答pv=$23643.13 1c.因为在 year 5 you will h**e a$20,000 deposit,so we need to calculate the fv th**&20,000 alone can bring us,and then deduct th** part from the total($75,000)and then find out how much the equal annual deposits should be n=10 i%8 pv=-20000 pmt=0 求出fv=43178.5 deduct from$75,000 75,000-$43,178.5=$33562.5 所以 equal annual deposit等于 n=15 i%8 pv=0 fv=33562.5 得出:pmt=$1236.09 第2题 根据定义代数进去就可以了 第3题 a.ebit 你interest 已知 tax rate 已知 也是代数进去 b.earning per share 你计算一下得出相等eps 就可以了