Answer and Explanation:
Efficiency and equality:
We have given the information that there are two areas one has many small school and another has few large schools. The area which has many small schools faces a large competition as there are large numbers of school in that area. In order to maintain equality and efficiency the voucher system should announced in the area which has few large schools. Introducing the voucher system in this few large school region help to maintain equality as there is less competition. Whereas the introduction of the voucher system in an area which has many large schools increases the inequality as there is high competition and this inequality also stimulated by the migration factor. So, these are the effects of voucher system in different areas.
selling goods only at certain predetermined prices that reflect definite price breaks is called Price lining
Price lining, also known as product line pricing, is a marketing tactic where a company charges for its products in accordance with its quality, features, or other characteristics to set them apart from competing ones.
Price line, to put it simply, is the practice of placing comparable products in various price ranges, each of which differs significantly in terms of the characteristics or qualities it offers. These brackets typically have lower starting prices and higher price points.
Despite having "price" in its name, price lining is a marketing tactic. The major goal of this strategy is to increase sales and audience size by making the offering more appealing to a wider range of consumers.
Apple, a company that makes smartphones, is a good illustration of price lining in action. Apple offers its iPhone lineup in a range of price points, with each model differing mainly in the small number of extra features that are added to the more expensive ones. Instead of solely selling expensive iPhones, Apple now offers a variety of models to appeal to customers with varying levels of purchasing power, which helps them grow sales.
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5.16 cubic yards is the answer.