Elaine bought $4 worth of apples and$3 worth of lemons. did her grocery bag weigh more than or less than 5 1/4 pounds? use a model to support your answer.

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

Find the vertex for the parabola given by the function ƒ(x) = −3x2 − 6x.

Whoever gets this right gets the ! the half life of a soul smelling substance is 4 years. if you have 8 oz of this strange substance, how much of it will you have after 20 years? show work.