To determine the correct order of the items from the least price per gram to the greatest price per gram, we start by comparing the given prices:
- Item A price per gram: \[tex]$0.06
- Item B price per gram: \$[/tex]0.054
- Item C price per gram: \[tex]$0.30
First, we identify the item with the least price per gram:
- Item B: \$[/tex]0.054
Next, we compare the remaining items to identify the one with the next higher price:
- Item A: \[tex]$0.06 (Since \$[/tex]0.06 is greater than \[tex]$0.054 but less than \$[/tex]0.30)
Finally, the item with the highest price per gram:
- Item C: \$0.30
Thus, the order of items from the least price per gram to the greatest price per gram is:
[tex]\[ B, A, C \][/tex]
So, the correct answer is:
[tex]\[ \boxed{B, A, C} \][/tex]