A. 812r) and 100
which pair of
expressions are
equivalent?
b. 6r+ 3 and 9r
c. 9(3r – 4) and 27r - 36
c 9
d
r
+r+r+r+r and r5

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?