To determine the distance Samuel walks, we can use the formula for distance, which is given by:
[tex]\[ \text{Distance} = \text{Rate} \times \text{Time} \][/tex]
In this problem, the rate at which Samuel is walking is 4 miles per hour (mph) and the time he walks is 3 hours.
So, plugging in these values:
[tex]\[ \text{Distance} = 4 \text{ mph} \times 3 \text{ hours} \][/tex]
When we multiply the rate and the time:
[tex]\[ \text{Distance} = 12 \text{ miles} \][/tex]
Therefore, Samuel walks a distance of 12 miles.
So, the correct answer is:
OC) 12 mi.
