Final answer:
The tallest mountain above sea level is Mount Everest, standing at a height of 29,029 feet (8,848 meters) on the border between China and Nepal in the Himalayan range. It can be converted to approximately 8.85 kilometers.
Step-by-step explanation:
The tallest mountain above sea level is Mount Everest, located on the border between China and Nepal in the Himalayan range. It stands at a height of 29,029 feet (8,848 meters), making it the highest point on Earth. To convert this height to kilometers, we can use the conversion factor that 1 kilometer is equal to 3,281 feet. By dividing 29,029 feet by 3,281, the height of Mount Everest in kilometers is approximately 8.85 kilometers.