Answer:
30 because if u divided 120 by 4 its 30 and the parents get 1/4 so its 3....... 30/120
Answer: The refrigerator cost in this month is $4.5 approximately.
Step-by-step explanation:
Since we have given that
Amount of watt of electric power = 320 W
Number of days = 30
Unit cost of electricity = $0.13/Kwh
Hold factor = 
Number of hours in a month = 24
So, the refrigerator cost in this month would be

Hence, the refrigerator cost in this month is $4.5 approximately.
Answer:
7644
Step-by-step explanation:
Hope this helps!
6+6=12
8+4=12
or if you mean algebraic equation:
6+x=12
x+4=12