See how we rate products and services to help you make smart decisions with your money. Math class seemed pointless back in the day, but it turns out all those confusing equations are quite useful.

The Drake Equation is constructed with similar logic. The first six terms, when multiplied together, yield the average number of new technologically transmitting societies that come on-line in the ...

The formula for simple interest requires your initial principal balance, annual interest rate, and time in years. Say you put a sum of $800 into a savings vehicle with a 5% annual simple interest ...

There are different ways to determine the rate of a reaction. The method chosen usually depends on the reactants and products involved, and how easy it is to measure changes in them. The mean rate ...

A cap rate helps determine if a real estate investment is worth pursuing. The cap rate formula involves dividing a property's net operating income (NOI) by its purchase or appraised value.