A ball is dropped from a certain height. The function below represents the height f(n), in feet, to which the ball bounces at the nth bounce: f(n) = 9(0.7)^n

What does the number 9 in the function represent?
Number of times the ball was dropped
Height from which the ball was dropped
Height to which the ball will bounce at the nth bounce
Number of times the ball bounces at the nth bounce

Afurniture manufacturer produces chairs and sofas. each chair requires 10 yards of fabric, and each sofa requires 20 yards of fabric. the manufacturer has 300 yards of fabric available. to fulfill orders, the number of sofas must be at least twice the number of chairs. let x be the number of chairs and y the number of sofas. which inequalities are described in the problem? check all of the boxes that apply

Determine the volume of a cylinder bucket if the diameter is 8.5 in. and the height is 11.5 in.

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?