A store marks up a laptop 50% from its original price of $299. What is the new price for the computer? $448.50
$149.50
$597.50
$300.50

$448.50

Step-by-step explanation:

"Marking up" an item by x% means to increase its price by x% of the original price.

Here, when marking up by 50%, you would multiply the original price by 1.5:

1.5*299 = $448.50

You wouldn't just multiply by .5 because that would only give you 50% of $299. You could multiply .5*299 and get $149.5, but then you'd have to add it to $299, which would get you $448.50 again!

The quicker way is to just multiply the original price by 1+x%.

Hope this helps!