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Answer: 8.5 cm thick

Step-by-step explanation:

If one large envelope is 0.085 centimeters thick, then 100 envelopes stacked all together would be 100 0.085's added together, or 0.085*100. Simply move the decimal place over two points, and you get 8.5 centimeters thick.

lucasvineyard

Answer:

8.5

Step-by-step explanation:

move the decimal two spots backs because there are two zeros