Bruce is a singer who earns $250 to perform a concert. After his show, Bruce sells his CDs for $12.50 each. Which graph best shows the number of CDs Bruce must sell in one night in order to earn more than $500 total for the night?

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?