If the radius is 4m, what will be the area of the circle?
a) 4π m2
b) 8π m2
c) 16π m2
d) 4π m

(im honestly to tired to do any more school work plz me)

Find the average rate of change for f(x) = x2 − 3x − 10 from x = −5 to x = 10.

Atheater wants to build movable steps that they can use to go on and off the stage. they want the steps to have enough space inside so they can also be used to store props. how much space is inside the steps?

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?