Answer:
C
Step-by-step explanation:
1)Non- zeros (1,2,3,....) are always significant.
2)Captive zeros are significant too( zeros between non- zeros ).
3)Trailing zeros (zeros at the end) aren't significant always unless if there is a decimal point.
Such this question we have decimal point so we count them
namely how many times does 3/4 go into 12⅜?
let's firstly convert the mixed fraction to improper fraction, and then divide.

Answer:
I think, it’s A, because, if you organize it in standard order,it doesn’t with any of them.
Answer:
Step-by-step explanation:
3w^3-2