Using the Pythagorean therefrom none of these are correct <span />
If the mode is 8, then 8 actually shows up in the data set. This is not true of 7 or 5.
Answer:

Step-by-step explanation:
Please see the attached picture for the full solution.
Answer:
15771 > - 7
Step-by-step explanation:
Comparing the elevation of the two points ;
Point with elevation of 15771 is positive meaning it occurs above sea level and this higher than the point with an elevation of - 7 which is occurring below sea level
Hence, to compare both elevations :
Montblanc has higher elevation than Rhone river delta
Montblanc elevation > Rhone river delta
15771 > - 7
She started with $7 because she gave away 18 then she got $50 then she has $57 then she got $29 then she has $86