Why are there trade-offs in economic decisions?

scarcity
the law of supply
the law of demand
priorities

The media specialist suggests a library reading program that will correlate highly with the teaching program and reward the students as they read. the rewards will be provided by the business community. a pencil carrier will be the reward for having read 25 books, a baseball cap the reward for having read 30 books, a tee shirt for 50 books, and a backpack for having read 100 books. the media specialist's suggestion is based on her knowledge that:

Nikolas works in a shoe store as a salesperson. a teenage boy comes in looking for comfortable sports shoes because he is going on a hike. he tells nikolas he wants shoes that have velcro straps. nikolas shows him a wide variety of velcro-strapped shoes, but the customer rejects them because they don't feel comfortable. he asks for sports shoes with laces instead. nikolas once again shows him a wide variety. the boy is once again not satisfied and asks to see the velcro-strapped shoes again. nikolas is irritated but doesn't show his annoyance. what customer service skill is nikolas showing? nikolas is a. meekness b. patience c. persistence

Stock market crashes happen when the value of most of the stocks in the stock market increase at the same time. question 10 options: true false