Answer:
Option C, D, E
Explanation:
To find : Which pairs of numbers in scientific notation shows one number that is about 20 times as great as the other number?
Solution :
We divide large number by smaller number to get the required answer,
A)

B)

C)

D)

E)

Option C, D and E pairs of numbers in scientific notation shows one number that is about 20 times as great as the other number.