Answer:
There is none
Step-by-step explanation:
The fact is that how Sheila wanted to buy a picture frame and spend the rest of her money on her teachers. If you do not know the cost of the picture frame you can not solve it. However, if she were to just spend her money on gift cards she could be able to buy 6 gift cards and have five dollars left over, but is not the case. It is like buying candy with five dollars when it actually costs 10 dollars.