Respuesta :

Answer:

D or 6

Step-by-step explanation:

Angle G is bisected if FGHI is a square. That being the case

7x + 3 = 45          Subtract 3 from both sides

7x = 45 - 3          Combine

7x = 42               Divide by 7

7x/7 = 42/7

x =  6