16, because 1 foot is 12 inches, so 28 - 12 = 16
Answer:
55
Step-by-step explanation:


Cross multiply
|JG| = 
|JG| = 35
Therefore |IG| = |JG| + |IJ|
|IG| = 35 + 20
|IG| = 55
Please mark me brainiest if correct.
The Method is that you add 1 block horizontally to the 2nd row of the figure every time you make a new one.