market for paperback detective novels is perfectly competitive. Suppose we have identical book readers, and each individual book reader's demand for paperback novels is given by P=130-7Q. We have 160 book readers in the market. What is the market quantity demanded when the price of a paperback novel is $21. Enter a number only. Remember

At a pen price of € 2.28, the supplier agrees to produce 7,500 pens and the demand for pens is 7,900. At a price of € 2.37, the supplier agrees to produce 7,900 pens, but the demand is 7,800. The demand and supply functions of pens are known to be linear. Construct supply and demand equations and find a balance between price and quantity.

What must be true about the demand function if E = 0?

Imagine a new company enters a market selling tutoring. The firm does some experimentation in the market, and it reports the following data points. At $75 per student, 2,250 students sign up for tutoring. At $30 per student, 9,000 students sign up. At $150 per student, no students sign up. 1.Write the equation representing this demand curve. 2. Relax the assumption that demand is linear; instead, assume only that the law of demand holds. Given this assumption and the data you observe, what can we say about the number of students who sign up at prices greater than $75? The school’s accountants determine that when the price per student is $15 it can supply 1,500 spots for tutoring, and that when the price is $45, it can supply 7,500. 3.Relax the assumption that supply is linear; instead, assume only that the law of supply holds. Given this assumption and the data you observe, what can we say about the number of student slots the school supplies at prices greater than $400? 4.Find the…