Answer and explanation

Correct answer: C. 36

  1. Step 1: 45% means 45/100.
  2. Step 2: 45/100 x 80 = 36.
Answer
36.
Why not the others: 177.778: the percentage was divided into 100 times the number. 1.778: the number was divided by the percentage. 125: the two numbers were added.

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