<h3>
Answer: C) regular</h3>
Explanation:
Any regular polygon is both equilateral and equiangular.
Equilateral = all sides are equal
Equiangular = all angles are equal
area of tile = 6 *14 = 84 square inches
number of tiles = 8500/84 = 101.19
102 tiles are needed

Lets expand both multiplications first.

Simplify down the right side.

Add 38.25 to both sides.

Subtract 11.22x from both sides.

Divide by -21.42 on both sides. Because we're dividing by a negative, we need to change the inequality direction.

This means, out of the options available, (-2.5, ∞) is the correct answer.
Answer:
x=.5
Step-by-step explanation:
6x-9+8-4x=0
6x-4x=2x
-9+8=-1
2x-1=0
2x=1
x=.5