Nita wants to buy a new keyboard for her computer. she will buy the keyboard when it is on sale for under $50. write an inequality that describes k, the price in dollars at which nita will buy the keyboard.

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?