If you want to buy an item in a store that costs $50 and is on sale for 10% off, then how much would the item actually cost you after the discount?

The item would be 45 dollars.

Step-by-step explanation:

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,