Urgent needed : ( the original price of a sofa is $500. answer the following questions. a. if the sofa price decreased by 20%, what is the new price?

400

Step-by-step explanation:

If we start at 500 dollars and we have the priced decreased by 20%, then we are paying 80% of that 500 dollars since 80%+20%=100% which is the whole price.

So we need to calculate .8(500) which is 400.

answer: 21$

step-by-step explanation:

$42 / $14 = 3   (ratio 3: 1)

$7 x 3 = $21

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