Math Help

The cost of holding a party at a rollerskating rink is a function of n, the number of people in the party. The cost function, C , can be represented with this set of rules:

C(n) = 150 ,0 < n ≤ 12
260, 12 < n ≤ 20
400, 20 < n ≤ 30

The cost of a party with 9 people is $_____

The cost of a party with 20 people is $_____

  1. 👍
  2. 👎
  3. 👁
  1. since 9 ≤ 12, that would be C(9) = 150
    now do n=20

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    2. 👎
  2. C(9)=400

    1. 👍
    2. 👎

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