Respuesta :

12 + 2 - (4 × 5^2) ÷ 7 + 1

12 + 2 - (4 × 25) ÷ 7 + 1

12 + 2 - 100 ÷ 7 + 1

12+2-100/7+1

15-100/7

Equal 5/7
Rise over run 5 is rise and 7 is run