Answer: 72.5 lbs
Step-by-step explanation:
<u>Create the equation:</u>
145=2x -->where x is how much the baby turtle weighs
<u>Solve the equation:</u>
Divide both sides by 2 to get 72.5 lbs
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. A simple counter-example to the contrary: let 
with 
. However, scaling by -1 gives the vector 
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.