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Samuel orders four DVD's from an online music store. Each DVD costs $9.99. He has a 20% discount code and sales tax is 6.75%. What is the total cost of his order? Please helpppp

Respuesta :

answer: $34.13

explanation:
4 • $9.99 = $39.96 before tax or discount

subtract discount:
$39.96 • 0.2 = $7.992
39.96-7.992 = 31.968

add tax:
31.968 • 1.0675
= $34.13
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