Vì sao khi tính GDP, chúng ta chỉ tính toán cuối cùng của sản phẩm giá trị mà không tính toán giá trị của sản phẩm trung gian? Cho ví dụ cụ thể để giải thích.

Use the foil method to find (z− 5/3 )(z− 2/3 )

How do i do this activity, is appreciated

Someone answer asap for ! a discount store’s prices are 25% lower than department store prices. the function c(x) = 0.75x can be used to determine the cost c, in dollars, of an item, where x is the department store price, in dollars. if the item has not sold in one month, the discount store takes an additional 20% off the discounted price and an additional $5 off the total purchase. the function d(y) = 0.80y - 5 can be used to find d, the cost, in dollars, of an item that has not been sold for a month, where y is the discount store price, in dollars. create a function d(c(x)) that represents the final price of an item when a costumer buys an item that has been in the discount store for a month. d(c(x)) =