A transformation T : (x,y) -> (x + 3, y + 1)The image of B(4,1) under this transformation is

A. (7,2)
B. (1,0)
C. (-1,0)​

A. OriginalPrice of music player = $170.67

B. The price that store paid for the player = $256

C. Difference between the discount price and price that the store paid = $128

What is marked up and marked down price?

Markup refers to the value that a payer adds to the cost price of a product. The value added is called the mark-up. The mark-up added to the cost price usually equals retailprice.

Markdown represents the difference between the original or full price of an item and the current price that's reduced. It's typically expressed as a percentage. Markdown allows retailers to sell their products at a lower rate.

Given, A hand-held digital music player was marked down by 1/4 of the original price.

Let the original price be x.

Then discount = x/4

So, Sale price = x- x/4 = 3x/4.

A. sale price given = $128

⇒ 3x/4 = 128

⇒ x = 128 × 4/3

⇒ x = 512/3 = 170.67

The original price $170.67

B. The item was marked up by 1/2 before it was placed on the sales floor.

then cost = $170.67 + $170.67 × 1/2

cost = $ 170.67 + $85.335

cost = $256.005 = $256

C. Difference between the discount price and price the store paid for the digital player

= cost - sales price = $256 - $128

= $128

Hence,

A. $170.67 is the originalprice of the digital music player.

B. Store paid price of $256 before it was placed on sales floor.

C. There was difference of $128 between discount price and the price store paid for the digital player.

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It was marked down 1/4 of the original price to $128. That means $128 is equal to 3/4 of the original price. So the original price would be 4/3 of $128. I get $170.67 (rounded to the nearest cent).