It is working
Have a great day
i'm sorry but can you put in more details as to what each item costs, if it is just variables then it should be something like b times the amount bought plus c times the amount bought. without the costs i cannot actually give you how much she spent
Yes because if yuo add 12 more your adding 12 more of students to make 24
-2a from both sides then divide by -5 and a=1
