Consider the inequality 2.5 – 5k ≤ A – Bk. 1.Find one pair of values, A and B, so that no value of k is a solution.
2.Find one pair of values, A and B, so that all values of k are solutions.

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?