Helps pls! Find the length of AB, given that DB is a median of the triangle and AC= 26

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

Hi, can anyone show me how to do this problem? 100 points for this. in advance

David and alton are training for a race. they spend 35 minutes stretching and then go on a 5 mile practice run. david runs at a pace of 7 min/mile. alton runs at a pace of 8 min/mile. write an equation for each runner that shows the total length of their workout. then solve each equation showing your work