The two pentagons seen below are similar figures. What is the scale factor from the large pentagon on the right to the small pentagon on the left? The pentagons are not drawn to scale.

9.1

Step-by-step explanation:

For scale factor you divide one of the shape dimensions by the other one.

like if you knew the width or something of both of them you divide that one by the other one. So I chose:

                            91 divided by 10 = 9.1

                         81.9 divided by 9 = 9.1

                        54.6 divided by 6 = 9.1

          So the answer is 9.1 no matter what you choose for this problem.                        

a; x = 0.5

step-by-step explanation:

-10x = -5

x = 0.5