Can you please check this interest problem and correct my work

[From: ] [author: ] [Date: 12-05-10] [Hit: ]

5) ..9.= 705.......

I=610
R=9.1%
T=9 years, 6 months
P=???

P=I/RT
610/(0.091)(9.6)
P= 698.26 ???

P=I/ RT
= 610/ (.091 * 9.5) ..9.5 because 6 months = 1/2 a year
= 705.61

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