So, first of all let me explain the process of hydration to you.
The water causes the hardening of concrete through a process called hydration. Hydration is a chemical reaction in which the major compounds in cement form chemical bonds with water molecules and become hydrates or hydration products.
Considering this information, the answer is D.
RS + ST = RT
(5x-2) + (3x + 2) = 48
5x + 3x - 2 +2 = 48
8x = 48
8x/8 = 48/8
x = 6
RS = 5x - 2
= 5(6) - 2
= 30 -2
= 28
ST = 3x + 2
= 3(6) + 2
= 18 + 2
= 20
it is not a word that comes from Georgia
I think it’s Enlightenment period