Lakisha bought a stereo on sale from electronics unlimited. she used a $40 gift certificate to pay for the stereo. if the stereo was on sale at 25% and the final bill was $522.50plus tax. what is its regular price

The regular price=$750

Step-by-step explanation:

Step 1

Let the regular price be x

regular price=x

Step 2

The expression for the price after the discount is;

price after discount=regular price-discount rate×regular price

where;

regular price=x

discount rate=25%

replacing;

price after discount=x-(25/100)×x=x-0.25 x=0.75 x

price after discount=0.75 x

Step 3

Get the expression for the final bill as shown;

final bill=price after discount-gift certificate

where;

final bill=$522.50

price after discount=0.75 x

gift certificate=$40

replacing;

522.50=0.75 x-40

0.75 x=522.50+40

0.75 x=562.50

x=562.5/0.75

x=750

The regular price=$750

answer:   14

step-by-step explanation:          

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answer: there are 453.592 grams in a pound.