Step-by-step explanation:

The equation relating length to width
L = 3W
The inequality stating the boundaries of the perimeter
LW <= 112
When you plug in what L equals in the first equation into the second equation, you get
3W * W <= 112
evaluate
3W^2 <= 112
3W <=

W <=

cm
Possibly 230 minutes?? dont quote me on that lol
Answer:
1
Step-by-step explanation:
Anything to the power of 0 equals 1
Let:
100%---------------->24h
30%------------------>xh
Using cross multiplication: