Answer: 1,296,000 inches
Explanation:
Step 1: 100 yards to feet, is 300 feet, considering that 1 yard = 3 feet.
Step 2: 300 feet to inches is 3600, because one foot = 12 inches.
Step 3: 30 feet to inches is 360, because 30 x 12 = 360.
Step 4: 3600 x 360 = 1,296,000 inches.