Answer:
7
Explanation:
use the distance formula which is (the pic down below)
so then plug in the numbers:
the sqaure root of (3-(-4)^2 + (-6-(-6)^2
then you get the sqaure root of (7)^2+ (0)^2
then add the numbers
you get sqaure root of 49
and the square root of 49 is 7 (because 7*7=49)
Hope this helps!