C. 576 ft. i answered this just to give the other person brainliest because im doing the same question at the moment so i figured itll make up for helping me :)
Probability hit=40%=4/10 probability no hit=1-p (hit)=1-4/10=6/10 probability= p(hit)+p(hit)+p(hit)+p(hit)+p(hit)+p (no hit)+p (no hit)+p (no hit) probability=4/10×4/10×4/10×4/10×4/10×6/10×6/10×6/10 =0.0022 ( I think but I'm not 100% sure)