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.
What is an Expense Account? Expenses are the costs incurred to generate revenues. In other words, a firm records an expense when it disburses cash or promises to disburse cash for an asset or service used to generate income. A manufacturer would record an expense when it pays its employees for producing its products.