11. 1.97 * 10^-6
12. 3.5 * 10^-3
13. 2.28 * 10^13
14. 5.302 * 10^-3
15. 1.64 * 10^1
16. 9.85 * 10^-1
Can you see the pattern?
Try the rest yourself
Answer:
12 presents
Step-by-step explanation:
4/6= 2/3
2/3 x 18 = 12