Answer:

• 402 000 millimeters = 402 meters
• 2.85 meters = 285 centimeters
• 2 kilometer = 2e+6 millimeters
• 71 meters = 0.071 kilometers
• 8 kg = 8000 g
• 3,000 g = 3 kg
• 2.5kg = 2500 g
• 850 mg = 0.85 g
• 75 dg = 0.073549875 m​

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Answer:

1. 402 meters

2.  285cm

3. 2000000 mm (2e+6)

4. 0.071 km

5. 8000g

6. 3kg

7. 2500g

8. 0.85g

9. 7500mg

( a decigram is a unit of measurement of weight and mass while the meter is used for height, I changed it to mg since m and dg arent the same measurement for the same thing )