We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defence, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United...
RGR, a consortium comprising Spoornet, the South African rail operator, and NPLI, an international group of companies specialising in infrastructure investment, has signed a concession agreement with the Mozambican Railways and Government to upgrade and run the Maputo corridor line for the next 15 years.
Relative growth rate (RGR) is the growth rate relative to the size of the population. It is also called the exponential growth rate, or the continuous growth rate. In terms of differential equations, if is the population, and its growth rate, then its relative growth rate is. If the relative growth rate is constant, i.e., , it is not difficult to verify that the solution to this equation is.