How toConvert 8.9 billion to standard notation?

2.7 billion = 2,700,000,000

2,700,000,000.* * * * *2.7 billion, is standard notation, is 2.7*109

68,100,000,000

Standard notation is simply the number written out in decimal, so 44.3 billion in standard notation would be 44,300,000,000

Standard notation = 5,000,000,000