900 tickets were sold. Adult tickets cost $10, children's cost $4, and a total of $7500 was collected. How many tickets of each kind were sold?​

Evaluate the expression. (9 + 5)(3 + 2)0

Landon wrote that 3−2.6=4. which statement about his answer is true?

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?