To Prove :
Side lengths 6, 8 and 10 will make a right triangle.
Solution :
We know, by Pythagoras theorem :

Here, c is the biggest side and a and b are other sides.
Putting given values in above equation.

Since, LHS = RHS .
Therefore, lengths 6, 8 and 10 will make a right triangle.
Area is the area<span> of a flat, or plane figure is the number of unit squares that can be contained within it. The unit square is usually some standard unit, like a square meter, a square foot, or a square inch</span>
Answer:
The answer is profit over cost of sales time 100 (80-50)/50 x 100 = 60% mark up
So you just want to find out how many groups of 5 1/2 are in 15 dollars, or just dividing.
15/5.5 = 2.72 dollars
I think you said round to the nearest tenth, so 2.70 dollars.
-6 and 8
-6+8=2
(-6)(8)=-48