To convert the distance of 10 feet into inches, you need to know that there are 12 inches in 1 foot.
The correct way to perform this conversion is by multiplying the number of feet (10 feet) by the conversion factor that relates feet to inches (12 inches per 1 foot), which gives you:
10 feet × (12 inches/1 foot) = 120 inches.
Therefore, the appropriate choice for converting 10 feet into inches is:
D. converting feet to inches by multiplying 10 feet by 12 inches/1 foot.