Answer:
3,400 g
Explanation:
The computation of the grams of trail he left is shown below:
As we know that
1 kg = 1000g
So for 12 kg it is = 12000 g
And, his family ate 8,600 g mix on the hiking trip
So, the trial mix did he have left is
= 12,000 g - 8,600 g
= 3,400 g