Constant of variation = number of chairs/ spacing.

80/16 = 5

The answer is B.5

Answer:

the anwser is A

Step-by-step explanation:

x^2 + 6x + 4x + 24 + x^2 - 7x -x + 7=

=2x^2 + 2x + 31

right triangle

10 + 24 = 34

34 > 26

Therefore, there is a triangle.

Now we use the Pythagorean theorem.

10^2 + 24^2 = 100 + 576 = 676

26^2 = 676

Since 10^2 + 24^2 = 26^2, the triangle is a right triangle.