Answer:
One possible answer is: 2.25p + 2.25b + 2.25s
Another possible answer: 2.25(p + b + s)
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Explanation:
Each item costs $2.25 per box, so,
Add up those subtotals to get the grand total
2.25p + 2.25b + 2.25s
is one possible answer
What we can do is factor out the common 2.25 using the distributive rule in reverse.
Another possible answer is: 2.25(p + b + s)