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When Anna was studying at university, she had a monthly income of $900 and bought 4 items of second-hand clothing.Now, she is working full-time with a monthly income of $3000.She now buys 20 items of second-hand clothing a month.Compute Anna's income elasticity of demand using the midpoint method.What type of goods are second-hand clothes for Anna?
Nicolaus Copernicus
A Renaissance mathematician and astronomer who proposed the heliocentric model of the universe, placing the Sun, not the Earth, at the center.
Sun
The star at the center of our solar system, which provides light and heat to Earth, enabling life.
Dualism
The philosophical or religious belief that reality consists of two fundamental entities, such as mind and matter, or good and evil.
Nonmaterial Realm
A concept or domain that is not physical or tangible, often associated with spiritual or intellectual aspects.
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