let's notice that, each angle has an "angle tickmark", indicating that all three angles are equal, thus is an equilateral triangle, since the sides are equal, then

Answer:
The mark up is $21.16 and the final selling price is $44.14
Step-by-step explanation:
To find the mark up price, you simply multiply the cost by the mark up percentage. This will give you the mark up.
$23 * 92% = $21.16
Now to find the total selling price, we add the cost and the mark up together.
$23 + $21.16 = $44.16
The slope of XY is the same as the slope of AB because AB is parallel to XY and parallel lines have the same slope.
First quartile is 3
The range idk
The third quartile is idk