please answer the questions in the image

In each case below, determine the effect on the sellers' total revenue and identify whether the demand curve in this particular market is elastic, inelastic, or unitelastic in the relevant price range. a. When the price per package of a brand of chocolate chip cookies increases from $4 to $6, monthly quantity demanded decreases from 15,000 to 9,000 packages. Initial total revenue is $ and nal total revenue is $ . Demand is elastic v . b. A fall in the price of sugar from $7 to $6 per carton raises weekly quantity demanded from 20,000 to 22,000 cartons. Initial total revenue is $ and nal total revenue is $ . Demand is (Click to select) v . c. A rise in the quantity demanded ofa monthly fashion magazine from 35,000 to 40,000 copies occurs when its newsstand price is reduced from $11 to $10. Initial total revenue is $ and nal total revenue is $ . Demand is (Click to select) v . d. Daily quantity demanded ofa particular model of earphones rises from 2,500 to 3,000 earphones if the price drops from $120 to $100. Initial total revenue is $ and nal total revenue is $ . Demand is (Click to select) v