Answer:

Step-by-step explanation:
Given:
,
To find the value of y, let's find x by solving 3x = 15.
3x = 15
Divide both sides by 3
x = 15/3
x = 5
Plug in the value of x into 




The answer is A). 5*4=20 one fifth is 4.
612 π m³ and <span>1922 m³ are your answers.</span>