Answer:
I'm not exactly sure, but I would say the answer is B.
Step-by-step explanation:
A) 5.84
B) 3 significant figure
C)5.8
D)0.0056
2.A) 31 , 35
exact: 3 √ 5
decimal: 6.70820393 …
Hope this helps
7+8+9/7*8*9 = 24/504 or 0.0476