The relationship between the marginal utility that Casey gets from eating ice cream sundaes and the number of ice cream cones he eats per week is as follows: 
Casey receives 3 units of utility from the last dollar spent on each of the other goods he consumes. If ice cream sundaes cost $4 each, how many ice cream sundaes will he consume per month if he maximizes utility?
Definitions:
Facial Recognition
A technology or process that identifies individuals based on unique facial features and characteristics.
Limbic System
A complex system of nerves and networks in the brain, involved in various emotional states and behavioral responses, such as fear, pleasure, and happiness.
Prefrontal Cortex
The region of the frontal lobes of the brain involved in complex cognitive behaviors, personality expression, decision making, and moderating social behavior.
Dual Process Model
A theory suggesting there are two distinct systems for processing information: a fast, automatic, intuitive system, and a slower, more analytical, reflective system.
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