$10,637 is invested, part at
13% and the rest at
6%
.
if the interest earned from the amount invested at
13% exceeds the interest earned from the amount invested at
6% by
$880.07, how much is invested at each rate? (round to two decimal places if necessary.)

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?