Expertise from Forbes Councils members, operated under license. Opinions expressed are those of the author. What if I say that starting a business is unnatural? The venture is always risky, and we’re ...

To find an investment's interest rate, substitute price, face value, and duration into a formula. For T-bills, subtract purchase price from face value, divide by face value, adjust for term. Online ...

Apple's Calculator app does more than help you calculate tips. With the latest OSes, it launches on iPad and lets you create a Math Note for more complex problems, among other things. Lance is an ...