Hey there,
Since your question is not clear, i could only come up with a few possibilities of what you are asking.
1) Weight of 1 cashew
9 cashew = 12 grams
1 cashew = 12 / 9
= 1.3 grams
2) Calories per gram
28 grams = 161 calories
1 gram = 161 / 28
= 5.75 calories
3) Calories for 9 cashews
1 gram = 5.75 calories
12 grams = 5.75 x 12
= 69 calories
Hope this helps :))
~Top♥