Mathematics
Grade10
Easy

Question

How much would postage cost for a letter that weighs 2.1 ounces?

  1. 41 cents
  2. 39 cents
  3. 45 cents
  4. 43 cents 

hintHint:

Finding out How much would postage cost for a letter that weighs 2.1 ounces

The correct answer is: 43 cents


    As we can see in the graph, it’s a ceiling function.
    f(2.1) = 43

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