Given:
There are given that x is the price before the increase and y are the after the increased price.
Explanation:
According to the question:
There are also given that 15% increase in their price.
So,
For the new price:
[tex]x+15\%x[/tex]
Then,
[tex]x+\frac{15}{100}x=x+0.15x[/tex]
Now,
y is the price after the increase,
So,
The price equation of the new price is:
[tex]y=x+0.15x[/tex]
Final answer:
Hence, the correct option is A and C, and E.
