calculate the missing information. round dollars to the nearest cent and percents to the nearest tenth of a…

calculate the missing information. round dollars to the nearest cent and percents to the nearest tenth of a percent.\n|item|original selling price (in $)|amount of markdown (in $)|sale price|markdown percent|\n|----|----|----|----|----|\n|pen|$ |$ |$12.90|25%|

calculate the missing information. round dollars to the nearest cent and percents to the nearest tenth of a percent.\n|item|original selling price (in $)|amount of markdown (in $)|sale price|markdown percent|\n|----|----|----|----|----|\n|pen|$ |$ |$12.90|25%|

Answer

Explanation:

Step1: Find the original selling price

Let the original selling price be $x$. We know that the sale - price is $(1 - \text{markdown percent})x$. Given the markdown percent is $25%=0.25$ and the sale price is $$12.90$. So, $(1 - 0.25)x=12.90$, which simplifies to $0.75x = 12.90$. Then $x=\frac{12.90}{0.75}=17.20$.

Step2: Find the amount of markdown

The amount of markdown is the difference between the original selling price and the sale price. So, it is $17.20 - 12.90=4.30$.

Answer:

Original Selling Price: $$17.20$ Amount of Markdown: $$4.30$