If a football field is 120 yards long, how many feet is it?

Step 1 ：We know that 1 yard is equal to 3 feet. So, we can convert yards to feet by multiplying the given number of yards by 3.

Step 2 ：The conversion equation is: \(120 \, \text{yards} \times 3 \, \text{feet/yard}\)

Step 3 ：Therefore, \(120 \, \text{yards} \times 3 = 360 \, \text{feet}\)