The isotope 
has a half-life of 7.5 seconds. If a sample contains 144 atoms of 
, approximately how many such atoms were there present 30 seconds earlier?
Definitions:
Family Decisions
involve collective choices made by family members regarding aspects such as education, health care, financial management, and daily living activities.
Permissive/indulgent
A parenting style characterized by high levels of warmth and low levels of discipline, where parents are more likely to allow their children considerable freedom inside and outside of the house.
Owner Parents
The legal guardians or caretakers of a child, implying responsibility and authority over the child's upbringing and welfare.
Baumrind's
refers to the typology of parenting styles developed by psychologist Diana Baumrind, characterized by varying levels of responsiveness and demandingness.
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