Answer and explanation

Correct answer: C. 12

  1. Step 1: 10% of 80 is 8 and 5% of 80 is 4.
  2. Step 2: 15% is 8 + 4 = 12.
Answer
12.
Why not the others: 8 is only 10%, 15 is just the percentage number and 16 is 20% of 80.

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