Answer :

To determine how many feet are in 54 inches, we need to understand the conversion factor between inches and feet.

There are 12 inches in a foot. Therefore, to convert inches to feet, we divide the number of inches by 12.

To break it down step-by-step:

1. Identify the conversion factor: 1 foot = 12 inches.
2. Set up the conversion: Divide the number of inches (54 inches) by the conversion factor (12 inches per foot).

[tex]\[ \text{Number of feet} = \frac{\text{Number of inches}}{\text{Inches per foot}} \][/tex]

[tex]\[ \text{Number of feet} = \frac{54 \text{ inches}}{12 \text{ inches per foot}} \][/tex]

3. Perform the division:

[tex]\[ \text{Number of feet} = \frac{54}{12} = 4.5 \text{ feet} \][/tex]

So, 54 inches is equal to 4.5 feet.

To express this in a mixed number, we can write 4.5 feet as [tex]\( 4 \frac{1}{2} \)[/tex] feet.

Given the options provided:
- [tex]\( 5 \frac{2}{5} \)[/tex] feet
- 18 feet
- 648 feet
- [tex]\( 4 \frac{1}{2} \)[/tex] feet

The correct answer is [tex]\( 4 \frac{1}{2} \)[/tex] feet.