kenji goes on a hike.

. He starts his hike at an elevation of 240 feet below sea level.
.He ends his hike at an elevation of 1940 feet above sea level.

How many feet did kenji's elevation increase from the start to the end of his hike

To calculate the elevation increase, we need to find the difference between the ending elevation and the starting elevation.

Ending elevation: 1940 feet above sea level
Starting elevation: 240 feet below sea level

To convert the starting elevation to feet above sea level, we add it to 0.
240 feet below sea level + 0 feet = -240 feet above sea level

Now we can find the elevation increase:
Elevation increase = Ending elevation - Starting elevation
Elevation increase = 1940 feet above sea level - (-240 feet above sea level)
Elevation increase = 1940 feet + 240 feet
Elevation increase = 2180 feet

Therefore, Kenji's elevation increased by 2180 feet.