Nancy bought a mobile phone marked at $720 at a discount of 20% and she had to pay 5% tax. If Nancy had to put 20% of what she had to pay including tax as a deposit, how much money did she have to pay for the deposit? $

20% of $720( original cost)= $144 (discount)

$720- $ 144 = $576 (discounted cost)

5% tax = $36 (tax payed)

tax + cost of phone = $612 (total of both tax and discounted cost)

20% of $612=$122.40 (deposit cost?)

Step-by-step explanation:

answer: i don't understand it

step-by-step explanation: sorry