London is home to numerous museums, galleries, libraries, sporting events and other cultural institutions, including the British Museum, National Gallery, Tate Modern, British Library and 40 West End theatres. The London Underground is the oldest underground railway network in the world.
The expected return is used to figure the taxable portion of pension that is taxed under the general rule. For a lifetime pension, it is computed by multiplying the annual pension by the applicable expected life multiple from government actuarial tables.
Return on Investment  (ROI) is a popular financial metric for evaluating the financial consequences of investments and actions. In fact, several other metrics are called by that name, but the best known is the metric defined here as simple ROI.