The graph below shows the average cost of monthly contract for four different cell phones in a European country from January to September in 2002. Summarise the information by selecting and reporting the main features, and make comparisons where relevant. Write at least 150 words. Task 1 曲线图...
If there were no seasonal variation then we expect the 4 winter months to be 1/3 the cost of the year-around bill, but most certainly we’ll see that the gas bill for the winter months will be proportionally higher. The reason we start with the natural gas bill is because we have a...
it causes zero air pollution during use, and caused only a tiny fraction of the environmental cost of a car during manufacturing. At the same time, it saves you at least 22 thousand dollars up front, followed by saving you an additional $3000-$7000 per year in gas, insurance, maintenance...
2. The cost of water in your area. The cost of the average water bill varies depending on the state, but also on zip code and region. For that reason, your bill might change after moving, even if your monthly usage stays the same. Per EPA, “usage varies a great deal across the ...