Here's a look at what causes hair to turn gray and some of the factors that affect graying. Answer: The age at which you'll get your first gray hair (assuming your hair doesn't simply fall out) is largely determined by genetics.
Profits or net income generally imply total revenue minus total expenses in a given period. In accounting, revenue is often referred to as the top line due to its position on the income statement at the very top. This is to be contrasted with the bottom line which denotes net income.
Incidental Expenses. What are 'Incidental Expenses'. Incidental expenses are expenses including fees and tips for porters, baggage handlers and other personal service employees. These expenses are part of the meals and incidental expenses reimbursement rates provided by the IRS.