Answer:

Explanation:
(3 × 10⁸) × 2 × 10³
3 × 10⁸ × 2 × 10³
3 × 2 × 10⁸ × 10³
6 × 10¹¹
In decimal: 600,000,000,000
Answer:
1. 1
1x
2. 5
x + 7
3. 8x
4. 8
x + 9y
5. x + 8y + 12
6. 12x + 3y
7. 10a + 7b + 4
8. 19a+11
9. a+16b+10
10. 13a+9b+11
11. 12a+2b+24
12. 4a+3b+1
13. 8x+6
14. 11x+20
15. 4x+27
16. 11x+8y
17. 5x+3y+18
18. 7x+15y+30
19. 7x+7y
20. 5x+10y+33
21. 2x+7y+37
22. 9x+7y+9
23. x+2x+7+3x+1= 6x+8
24. 3x+x+x+5+x+5+2x+3= 8x+13
Thank you for letting me do this math i needed it lol
Im pretty sure he earned 495 in interest, because you take 5,500 time .03 (from the three percent) and you get 165- then multiply by three because of the three years (495)
% of decrease would be 100 - (22*100)/28
=100-78.57 = 21.43%