Answer:
I was trying to answer but can you provide a picture of a better understanding, so I can solve the equation. If not then feel free to report me. Very sorry.
Step-by-step explanation:
The formula of a volume of a rectangle prism:
l - length
w - width
h - height
We have
Substitute:
2w+3(2w)=30
8w=30
w=3.75
l=11.25