What is the quotient of 223 + 3x2 + 5x – 4 divided by x2 + I +1?
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Solve the equation - 2(m -30) = -6m a-15 b-13 c-8 d8

Iknow the answer but the calculator doesn't seem to give the right one

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?