How far will atmospheric pressure (23.6 psi) push up a column of mercury? (The density of Mercury is 849 pounds per cubic foot.)

The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old

Rob filled 5 fewer plastic boxes with football cards than basketball cards. he filled 11 boxes with basketball cards.

Simplify each expression. use positive exponents. show work . (x –2 y –4 x 3 ) –2