<span>google it and you should have the answer I had the same problem </span>
Answer = 23.2146762081 pounds.
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13% of 81 = 10.53
10.53 converted to pounds (lbs) = 23.21......pounds
Shampoo tubes are hollow tubes so things can be stored or used as a conducter as it is metal.
Cell wall:
-acts like a skin
- most selectively controls what is inside and outside of the cell
-rigid
Cell membrane:
-gives a plant cell
-not rigid