you sell a smartphone that was originally priced at $600 but is now on sale for 20
% off. You give a loyalty customer an additional 10% discount. What is the total percent of discount the customer receives on the purchase?

Respuesta :

total discount = 20%+10%=30%

original price of the smartphone = $600

30% of 600= 30/100*600

=180

so total discount is $180

The price after discount = 600-180=420 $

I got 432 not 420 but ok