The function C(n)=12n+5

In the context of the function \( C(n) = 12n + 5 \):

1. What does \( C(3) \) represent?

   • The correct answer is: it represents the cost of buying 3 necklaces.
   • This is because \( C(3) \) calculates the total cost when ordering 3 necklaces.

2. Which of the following inputs does not make sense in this scenario?

   • The options given are \( C(500) \), \( C(10) \), and \( C(-20) \).
   • The correct answer is: C(-20).
   • Negative values for \( n \) (the number of necklaces) do not make sense in this context, as you cannot order a negative quantity of necklaces.