7m + 19 would be the simplified answer
Hope this helps
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Because the prefrontal cortex is still developing, teenagers might rely on a part of the brain called the amygdala to make decisions and solve problems more than adults do. The amygdala is associated with emotions, impulses, aggression and instinctive behaviour.
I believe there has to be enough activation energy for a reaction to occur in the first place, if that is what you are referencing
