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
31.98, I am not 100% sure.
Answer:
Step-by-step explanation:
If you ad them together you get 20 15/20 are boys 15 divided by 20 is .75
Answer:
D.7
Step-by-step explanation:
Answer:
9a-65
Step-by-step explanation:
simply write 9a+(add the remaining numbers all together)