13. The regular price of a baseball cleats is $80. If the cleats are on sale for 45% off, then: a) What is the value of the discount, in dollars? b) What is the final selling price of the cleats, before tax?

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?