The following are the equations for the supply and demand curves in the market for weezils: 
where Qd is the quantity demanded, Qs is the quantity supplied, and P is the price per weezil in dollars.
-Refer to Exhibit 4-1.According to the data given, when the market is in Equilibrium, how many weezils are sold?
Definitions:
Infants
Very young children, especially those under one year of age, characterized by rapid developmental changes.
Menarche
The occurrence of the first menstrual period in adolescent girls, marking the onset of puberty.
Pregnant
The state in which a woman carries a developing fetus within her uterus.
Crystallized Intelligence
One’s lifetime of intellectual achievement, as shown largely through vocabulary and knowledge of world affairs.
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