Along with many other governmental reforms that began in 1994, the electrical plant just outside soweto was closed in 2000, and other plants were brought into use. some parts of soweto were then wired for electricity. it is estimated, however, that only about 30% of the more than 1.2 million black inhabitants have electricity in their homes; the remainder either cannot afford the costs involved or live in areas that have no electrical access. these inhabitants probably use for fuel.

The hypothetical island country of gilder lies in the mediterranean sea off the coast of france. demographers have studied gilder for the past 50 years. at the beginning of the study, gilder had a population of 20 million. the demographers have measured birth and death numbers, as well as immigration and emigration numbers, as shown in the data table. from the data, calculate the population of gilder for each 10-year period by filling in the population (no) and population (nt) columns in the data table. use this formula to do your calculations: population size: nt = no + (b + i) – (d + e)initial population = 20,000,000