Answer:
450,000,000mg
Explanation:
1kg= 1000g
1g= 1000mg
Let's find out how many mg is 1 kg. In order to do so, multiply 1000 by 1000.
Therefore, 1kg= 1000(1000) mg = 1 000 000 mg
Now, let's solve the question by multiplying 1,000,000 by 450 since 450kg= 450(1 kg).
450kg= 450(1 000 000) mg = 450 000 000 mg
This is also equivalent to 4.50× 10^8 mg.