Question

The cost of a notebook and a pen was same.after the rates were revised,the cost of pen is $4more than the original

Answer 1

Answer:

cost of pen - x

cost of notebook- x

cost of pen now- 4x

Answer 2

Answer:

y+4

Step-by-step explanation:

but I still have a doubt that it can be x=y+4 because they had said notebook and pen's cost was same