Answer:
There are 2 ways of righting this:
Method 1: height is 15 feet below ground level
Method 2: height is -15 feet ( a negative value )
Step-by-step explanation:
Drawing a sketch helps in understanding the question:
'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Distance of travel is more than height above ground. So it ends up below ground (presume in a cut out).
Distance below ground is
105−90=15 feet
