I will explain this answer with the help of number line which i have shown below.
Considering sea level as starting point i.e origin i will depict how far Trina had gone below sea level and how much Jessie went above sea level.
Distance Traveled by Trina below sea level = - 85.5 meter
Distance Traveled by Jessie above sea level =87.9 meter
Considering sea level as origin i.e 0
Total distance traveled by Trina= 0-(-85.5)=85.5 meter
Total distance Traveled by Jessie = 0+87.9=87.9 meter
So,Trina is nearer to sea level than Jessie.
Now Trina wants to hang glide at the same number of meters above sea level as she scuba dived below sea level.
Then Distance traveled by Trina=85.5 meter
No,she will not fly higher than Jessie because Jessie has traveled 87.9 meter.
