Step-by-step explanation:
..........I think the answer is 80.
do check yourself
1 foot is the distance from the climber to the horizon
The mean is add all those number together and divide those number like
1,2,3
So we add
1+2+3 = 6
So divided
6/3 = 2
Because there are 3 numbers
The equation of a cricle passing through (h,h) and with radius r is

so
cente ris (-6,7) and passing through (4,-2)


subsitute (4,-2) to find r^2




so it is

A is the answer