Alicia has a total of $75
After she bought a necklace for Laurie, she has $75 - $24.59 = $50.41
After she bought a purse for Daejia, she has $50.41 - $24.66 = $25.75
But, the store gave her $5 back, then she has $25.75 + $5 = $30.75
Then, Alicia has $30.75 left to spend on Krystal