Question

" A store purchased a DVD for $12.00 and sold it

Answer 1

What is the topic? And formula to solve this?

Answer 2

Sold DVD for 50% more of the purchase price of $12
so 12 + 50/100 (12)
=12+6
18

So customer will pay 7% tax on $18

Hence he will pay 18 (1.07)$
= $19.26

Hope this helps