Answer:
Most likely C .
Step-by-step explanation:
The premium plan charges 20 dollars per cake. (+ 20) and $5 per child (5x) for pizza.
The premium plan would represent: [tex]5x + 20[/tex]
The basic plan would charge $6 per child for pizza.
This would be: [tex]6x[/tex]
In a equation when the cost of the premium plan is the same as the basic plan, [tex]20 + 5x = 6x[/tex] would be the best for modeling.