6. Mr. Johnson sells and repairs watches at his store. Part A: Mr. Johnson took the price of a watch that was listed at $60 and marked it up by 30%. After the markup, what is the selling price of the watch?

$78.

Step-by-step explanation:

Listing price of watch = $60

Given that the watch price was marked up by 30%,

lets find 30% of listing  price to find increase in price after mark up

30% of listing price = 30/100 * $60 = $18

Thus,

New selling price = Listing price of watch + marked up price

New selling price =  $60 + $18 = $78

Thus, new selling price after mark up is $78.

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