Respuesta :

mhanifa

Answer:

  • See below

Step-by-step explanation:

This a form of the proportional relationship:

  • f(x) = kx, where f(x) - total cost, k- cost of each item, x - number of items

We have:

  • f(5) = 12

It means:

  • Total cost of 5 cupcakes is $12

In f(x)

  • f(x) is total cost
  • x is total cupcakes

So in f(5)

  • 5 cupcakes cost $12

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good job