92 can be rounded to 90
68 can be rounded to 70
90 x 70 = 6300
Answer: 9
Step-by-step explanation:
<u>Part A</u>
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and 
<u>Part B</u>
Diagonals of a parallelogram bisect each other, so

Solving by substitution,

Multiplying both sides by 3,

So, 
<u>Part C</u>
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