3which pairs of numbers in scientific notation show one number that is about

20 times as great as the other number?

choose all that apply.

a

b

c

d

e

2.01 x 10' and 4.25 x 106

5.97 x 104 and 3.12 x 103

4.91 x 106 and 5.09 x 103

8.21 x 10-3 and 4.13 x 10-4

2.94 x 10-8 and 6.22 x 10-7