The sum of three numbers is 62. the second number is equal to the first number diminished by 4. the third number is four times the first. what are the numbers?

which three expressions could be used to represent the numbers?

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?