Subtracting integers
11. -18-5
12. -6-6
13. -)
14. -13-8
15. )
16. 8-17
17. -)
18. -2-9
19. )
20. -13-8
21. -)
22. 3-5
23. -8-6
24. -)
25. )
26. -)
27. )
28. -3-10
29. -)
30. )

If you answer right ill give brainliest, : )

Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.

Convert the number to decimal form. 12) 312five a) 82 b) 30 c) 410 d) 1560 13) 156eight a) 880 b) 96 c) 164 d) 110 14) 6715eight a) 53,720 b) 3533 c) 117 d) 152