4. Market research of a product shows that when the price is $2, the demand is 44 units, while when the price is $10, the demand is only 20 units. At $2, a company is willing to supply 20 units into the market, while at $10, it is willing to supply 60 units. a. Find the Demand equation. b. Find the Supply equation. Find the equilibrium level of output and price. С.

8. A new car tends to depreciate in value more quickly during the first couple of years and then at a more gradual rate afterwards. Suppose that a 2017 Toyota Prius has a value of $18,000 on January 1, 2019. If it then begins to depreciate in value $1,500 per year, find a) The linear equation for the value of the car years after 2019. V b) The slope of the equation is of the car decreases c) Find the value of the car in 2022. and means for each year past 2019, the value and in 2027

Exercise 2. The demand per week for a book is 120 copies when the price is $8 each and 80 copies when the price is $10 each. a) Find the demand equation for the book, assuming that it is linear. b) Find the quantity demanded when the price is $13 each. c) Find the price if the quantity demanded id 2 books.