In a local market, the monthly price of internet access service decreases from $20 to $10, and the total quantity of monthly accounts across all internet access providers increases from 80 comma 000 to 180 comma 000. what is the value price elasticity of demand, expressed as a positive number? nothing. (round your answer to two decimal places.)

Although appealing to more refined tastes, art as a collectible has not always performed so profitably. during 2003, an auction house sold a sculpture at auction for a price of $10,211,500. unfortunately for the previous owner, he had purchased it in 2000 at a price of $12,177,500. what was his annual rate of return on this sculpture? (a negative answer should be indicated by a minus sign. do not round intermediate calculations and enter your answer as