Answer:
a) Elastic
b) total revenue is increased
Explanation:
a) The demand is elastic over the given range.
The demand is elastic because, with the variation in the price of the brownies the demand for the brownies varied too i.e the demand changes.
b) Now,
if the elasticity is same for the decline in price from $1.00 to $1.50 i.e 300
the revenue will increase as:
when the price was $1.00 the demand is 100
i.e
the total revenue = $1.00 × 100 = $100
now,
when the price decline to $0.50 the demand changes to 300
i.e
the total revenue = $0.50 × 300 = $150
hence,
the total revenue is increased.