Answer:
$18
Explanation:
In order to find what the price after the 50% markup is, me must first divide 12 by 50% so we know how much to add.
12 x 50% = 6
So in order to find our mark up price e must add 6, or 50% to 12.
6 + 12 = 18 so your answer is $18.
Hope this helps!