1 Intracellular fluid (2/3 of body water). 2  Per Guyton, in a body containing 40 litres of fluid, about 25 litres is intracellular, which amounts to 62.5% (5/8), close enough to the 2/3 rule of thumb. 3  Jackson's texts states 70% of body fluid is intracellular. 4  Extracellular fluid (1/3 of body water).
However, if you provided support to your brother, depending on the level of support and your brotherâs gross income for 2010, you may be able to claim him as a dependent on your tax return (under the qualifying relative rules).
So if your equipment cost Â£1000 you could claim 18% of Â£1000 this year = Â£180. Next year you can claim 18% of what is left = 18% of Â£1000-Â£180 = 18% of Â£820 = Â£147.60, etc. Hi I am completing the tax returns and doing the books for my partner who has set up a taxi business(sole trader) as of the 1st September.ther tax deductible expenses you may be able to claim include: 1  Costs of working from home: If you work out of your home then as a sole trader you can charge a proportion of certain household expenses such as mortgage interest, utility bills, and insurance.