Answer:
2.8 kg = 2.8 x 10^6 mg
Step-by-step explanation:
Multiply the value in kilograms by the conversion factor (1000000) otherwise known as 10^6
So, 2.8 kilograms = 2.8 x 1000000 = 2.8 x 10^6 or 2800000 miligrams
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