Iwill give brainliest if you answer this all

1 -  12.4

2 - 12.4

3 - 12.426

4 - 8.3

5 - 12.37

6 - 12.338

7 - 7.2

8 - 7.057

9 - 8.2

10 - 7.2

11 - 8.25

12 - 8.089

13 - 12.3

14 - 8.09

15 - 8.257

16 - 8.26

17 - 7.15

18 - 7.06

19 - 8.095

20 - 12.43

21 - 7.1

22 - 8.1

23 - 12.367

24 - 7.152

25 - 8.09

26 - 7.156

27  - 12.4

28 - 7.16

29 - 8.3

30 - 12.34

1 is 12.4

Step-by-step explanation:

the answer is a. q=6,r=6√2

step-by-step explanation:

ending amount = beginning amount / (2^n)

where "n" = number of half-lives (or elapsed time / half-life)

ending amount = 50 mg / (2 ^10 / 5.3)

ending amount = 50 mg / (2 ^ 1.8867924528)

ending amount = 50 m / 3.6981210597

ending amount = 13.5203794557 mg

or about 13.5 mg remain

source: