Answer:
People didn't want to trade their goods for other goods anymore.
Explanation:
People wanted to have both their item and another item (which they wanted to buy). Then currency was invented.
Answer:
The correct answer is letter "D": has increased efficiency from new engine technology.
Explanation:
American aircraft maker Boeing Commercial Airplanes introduced in 2009 the Boeing 787 under the name of "<em>Dreamliner</em>". The new plane has capacity for around 350 passengers. <em>The Boeing 787 advantage relies on the three engines that move the airplane developed by General Electric and Rolls-Royce. Those engines are fuel-efficient, reducing consumption and having an irrelevant impact on the environment.</em>
Answer:
Variable costs
Explanation:
Variable costs are dependent on production output. The variable cost of production is a constant amount per unit produced. As the volume of production and output increases, variable costs will also increase.
Answer:
Just-in-time (JIT) inventory systems started in Japan in the 1970s and spread to the U.S. about a decade later. JIT is an inventory-management system that aims to help businesses have just enough inventory readily available to meet current demand while avoiding excess. There are many pros and cons for a small business to consider before adopting a JIT system.
