126k views
5 votes
How many times smaller is 4 × 10-9 than 8 × 10-7? A. 200 B. 20 C. 20,000 D. 2,000

1 Answer

5 votes

Answer:

17

Explanation:

4×10-9= 4

8×10-7=21

21-4=17

User Jason Song
by
7.7k points