Answer:
p = 14
Equation:
[tex]156=12x+6p[/tex]
Step-by-step explanation:
Set up the equation:
Let x = # of friends that went to the movies
Let p = cost of 1 popcorn
[tex]156=12(6)+6p[/tex]
[tex]156=72+6p\\84=6p[/tex]
Divide both sides by 6
[tex]p=14[/tex]
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