Sylvia's annual salary increases from $100,500 to $109,500, and she decides to increase the number of vacations she takes per year from three to four. Calculate her income elasticity of demand for vacations using the midpoint method.

Assume the government imposes a $2.25 tax on suppliers, which results in a shift of the supply curve from s1 to s2. the price the seller receives for the product after paying the tax is

Josie just bought her first fish tank a 36 -gallon glass aquarium, which she’s been saving up for almost a year to buy. for josie, the fish tank is most likely what type of purchase

When cell phones were first entering the market, they were relatively large and reception was undependable. all cell phones were essentially the same. but as the technology developed, many competitors entered, introducing features unique to their phones. today, cell phones are only a small fraction of the size and weight of their predecessors. consumers can buy cell phones with color screens, cameras, internet access, daily planners, or voice activation (and any combination of these features). the history of the cell phone demonstrates what marketing trend?