1) The price of spring water rises from $1.90 to $2.10 a bottle, and the quantity demanded decreases from 11 million to 9 million bottles a week.

1) The price of spring water rises from $1.90 to $2.10 a bottle, and the quantity demanded decreases from 11 million to 9 million bottles a week.
a) Calculate the percentage change in the price of spring water.
b) Calculate the percentage change in the quantity demanded of spring water.
c) Is the demand for spring water elastic or inelastic?
d) Would the demand for Pepsi be more elastic or less elastic than the demand for spring water? Why?
e) Calculate the price elasticity of demand for spring water.
f) At what price is the price elasticity of demand for spring water equal to your answer in part (e)?
g) What is the change in the total revenue of sellers of spring water?
h) If the demand curve for spring water is a straight-line demand curve, is the price at which the demand for spring water is unit elastic a higher price or a lower price than your answer to part (f)? Why
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