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

Aresearcher believes increased perceived control influence the well-being of residents at a nursing home. to test this , she allowed one group of residents to have control over their daily lies, (where to eat etc) . the other group of 5 residents had these deceisions made by staff. the resident's feelings of well-being were measured on a 10 point scale at the end of a one month trial period. is there a difference on well-being?