Answer:
;
and 
Step-by-step explanation:
Required
Select which expression equals 18

This gives:


This gives:


This gives:


This gives:


This gives:

From the above computations:
;
and
are equivalents of 18
+ The volume of each candle is : 6*5*14= 420 cm³
+ The company used 4620 m³, so we have 4620:420= 11 candles
That is for you, 11 candles
Step-by-step explanation:
Below is an attachment containing the solution.
Answer:
A closed dot represents a lreater than or equal to or less than or equal to, which can be distinguished in an inequaity's equation by an underline.
Step-by-step explanation: