###Human: Sally picks 30 seashells on Monday. On Tuesday, she picks half as many seashells as she did on Monday. If she can sell each seashell for $1.20, how much money can she make if she sells all of her seashells?, ### Assistant: On Tuesday, Sally picks 30 / 2 = 15 seashells
In total, Sally picks 30 + 15 = 45 seashells
The total amount of money Sally can make is 45 * $1.20 = $54 
 So the answer is :  54