Answer:
$12.1
Step-by-step explanation:
Let price of each CD before tax=x
Total number of CD=6
Total price of 6 CD including tax=$80.40
Tax of each CD=$1.30
We have to find the price of each CD before tax.
Total tax of 6 CD=[tex]6\times 1.30=[/tex]$7.8
Total price of CD=Price of CD before tax+ tax of 6 CD
[tex]80.40=6x+7.8[/tex]
[tex]6x=80.40-7.8[/tex]
[tex]6x=72.6[/tex]
[tex]x=\frac{72.6}{6}=12.1[/tex]
Hence, the price of each CD before tax=$12.1
