Sandy is always able to make it to the basketball hoop before anyone can reach her. which skill has she worked on to develop this ability?
agility
reaction time
balance
speed

Call the cops or tell an adult u trust

The person who utilize the progression principle will keep adding the difficulty of the exercise that he's doing, while the person who does not, will only stay stagnant.  the person that utilize progression principle, will get a stronger endurance because now his body is conditioned to do harsher routines.{the answer was already on verified)

The apple is red lol