Daisy received a tape recorder as a birthday gift and is not able to return it. Her utility function is U(x, y, z) = x + z 
f(y) , where z is the number of tapes she buys, y is the number of tape recorders she has, and x is the amount of money she has left to spend. f(y) = 0 if y < 1 and f(y) = 8 if y is 1 or greater. The price of tapes is $1 and she can easily afford to buy dozens of tapes. How many tapes will she buy?
Definitions:
Acclimatization
The process by which an organism adjusts to a gradual change in its environment, allowing it to maintain performance across a range of environmental conditions.
Seasonal Changes
Variations in environmental conditions, such as temperature and day length, that occur at regular intervals throughout the year.
Homeostatic Adjustment
The process by which the internal environment of an organism is regulated to maintain stable conditions through physiological or behavioral feedback mechanisms.
Torpor
A state of decreased physiological activity in animals, usually characterized by a reduced body temperature and metabolic rate.
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