Alexandra give 1/2 of her marbles to Tyler, who gives 2/3 of what he receives to jan, who gives 3/4 of what she receives to jerry. If each has a counting number of marbles what is the fewest number of marbles that Alexandra could have started with?

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?