Answer:
D. 4.5 kg
Step-by-step explanation:
Answer:8(2g+1)(4g2-2g+1)
Step-by-step explanation:
I believe it’s that they made it a democracy :) hope this helps !
Answer: 
Step-by-step explanation:
Given
The ratio of mixture of sand and cement is 5:3
If the total volume of mixture is 
Suppose there is 5x and 3x cubic centimeter of sand and cement respectively i.e.

Sand 
So, there is
of sand in the mixture