Marion's hobby is buying and selling rare coins. She purchased a 1914 Lincoln head penny minted in Denver for $20. Because the coin is one of the rarest Lincoln heads, Marion was able to sell the coin one year later for 20% more than she paid for it. What was Marion selling price for the coin?

20 * 1.20 = 24.00

oh ok thanks

To find out Marion's selling price for the coin, we need to calculate the 20% increase from the original purchase price.

Step 1: Calculate the 20% increase
20% of $20 can be calculated by multiplying $20 by 0.20 (which represents 20% in decimal form):
20 * 0.20 = $4

Step 2: Add the increase to the original purchase price
To find out the selling price, we need to add the increase to the original purchase price:
$20 + $4 = $24

Therefore, Marion's selling price for the coin was $24.