Answer:
The answer to your question is:
a)
8.23 x 10 ⁵
3.19 x 10⁸
b)
387.6 ≈ 388 times
Step-by-step explanation:
Columbus, Ohio population = 823, 000
United states population = 319 million
a)
823 000 = 8.23 x 10 ⁵ move the decimal point 5 places to the left
319 000 000 = 3.19 x 10⁸ move the decimal point 8 places to the left
b)
To find the answer, just divide the USA population by the Columbus, Ohio population
3.19 x 10⁸ / 8.23 x 10 ⁵ = 387.6 ≈ 388 times