Must be 4 paragraphs long for mid terms

how can education be used in everyday economical

buying goods which give the highest satisfaction for the price

toblerone bigger gap

this is common sense, but in economics, we give it the term of marginal utility theory. the idea is that a rational person will be evaluating how much utility (satisfaction) goods and services give him compared to the price. to maximise your overall welfare, you will consume a quantity of goods where total utility is maximised given your budget. for example, is it worth paying extra charges by airlines, such as paying for more leg-room? or pay to get priority boarding? economics suggests we need to evaluate the marginal benefit of these services compared to the marginal cost.

we need to see the examples!