An amusement park charges a $20 admission fee and $3 for each ride. Which equation can be used to determine c, the total cost of a day at the amusement park, based on n, the number of rides?

c = 3n + 20

n = 3c + 20

c = 20n + 3

n = 20c + 3

What is the value of x? x + 3 = - 9 Enter your answer in the box.

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