Answer:
The cost for 3 adults is $36
The cost for 6 children is $42
The cost for both adults and children is $78
HOPE THIS HELPED!
Explanation:
$36 children
$42 adult
$78 together
c*a=12*3= c=cost
c*ch=7*6= a=adult
ch=children
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R8
A similarity could be the columns and a difference could be the dome