Respuesta :

Answer:

32.9

Step-by-step explanation:

  1. 4.2 × 7 = 29.4
  2. Plug 29.4 in: 29.4 - 10.4 ÷ 2 + 2.9 × 3
  3. 10.4 ÷ 2 = 5.2
  4. Plug 5.2 in: 29.4 - 5.2 + 2.9 × 3
  5. 2.9 × 3 = 8.7
  6. Plug 8.7 in: 29.4 - 5.2 + 8.7
  7. 29.4 - 5.2 + 8.7 = 32.9

I hope this helps!