**45 POINTS** Anything helps! Its due next class so I need it done :( WILL MARK BRAINLIEST AS WELL!!

Answer:
17- 2000
18. 3000
19. 0.02
20. 0.00001
21. g
22. km
Step-by-step explanation:
hope this helps
Answer:
I believe that 17 is 2,000 and 18 is 3,000
Step-by-step explanation:
8 x 10x 10 10 10 10 = 800,000
4x 10 x10 =400
400x 2000 =2,000
hope that helps a lil