In 2008, there were 6.7 × 109 people living on earth. what is that number in standard notation?

a.) 6,700,000
b.)6,700,000,000
c.)67,000,000
d.)67,000,000,000

B) 6,700,000,000 people.

Step-by-step explanation:

We have been given that in 2008, there were people living on earth. We are asked to convert our given population in standard notation.

While changing scientific notation to standard notation we just move the decimal as many times as the exponent indicates. We can see that our exponent is 9, so we will move the decimal to 9 places right.

Therefore, there were 6,700,000,000 people living on earth and option B is the correct choice.