SOLUTION STEPS:
  - 2 tens = 20, 7 ones = 7, 9 tenths = 0.9, 3 hundredths = 0.03.
  - Add the whole-number parts: 20 + 7 = 27.
  - Add the decimal parts: 0.9 + 0.03 = 0.93. Total = 27.93.