Answer:
ok so 2.12 billion is 2,120,000,000 so you would go left with the decimal point so you would count to where there was only one in front of the decimal and the and 2 behind the decimal and so you would go 9 places to the left and get the answer of 2.12 x 10^9
Step-by-step explanation:
hope this helps :) plz give brainiest
