Answer:
The old selling price is $192.66
Step-by-step explanation:
Let the price in 2014 be x
Now the price in 2015 is 9 % more
So, price in 2015 = [tex]x+9\% x[/tex]
= [tex]x+\frac{9}{100}x[/tex]
= [tex]\frac{109}{100}x[/tex]
We are also given that In 2015 the price of business math text Rose is $210.
So, [tex]\frac{109}{100}x=210[/tex]
[tex]x=210 \times \frac{100}{109}[/tex]
[tex]x=192.66[/tex]
Hence The old selling price is $192.66
