Answer:
450$
Step-by-step explanation:
So lets add otgether everything that she NEEDS to buy, to see how much of 1500$ she can use on what she WANTS to buy.
So:
500+50+100+100+300
=
1050
This is the total cost of what she NEEDS to buy
Now lets subtract this from her income:
1500-1050
=
450
So we now know that the amount of money she has left to spend on what she WANTS is 450$
Hope this helps! :)