To solve this problem you must apply the proccedure shown below:
 1- You can apply the Law of sines, as following:
 The missing angle is: 180°-65°-45°=70°
 - The distance that Jake travels to the store is:
 30/Sin(70°)=x/Sin(45°)
 x=22.57
 - The distance that Maddie travels to the store is:
 30/Sin(70°)=y/Sin(65°)
 y=28.93
 - The diffrence is: 6.36
 The answer is: the difference is 6.36 m.