Respuesta :

Answer:

20 units

Step-by-step explanation:

Distance formula  uses the Pythagorean Theorem

Distance D = root (  (9 - (-3))^2  +  (10 - (-6) )^2 )

D = root (  12^2  +  16^2 )

D = root ( 144  +  256) =  root (400) = 20