Which of the following is closest to the circumference of the opening in cenimeters

Provide an example of a trigonometric function and describe how it is transformed from the standard trigonometric function f(x) = sin x, f(x) = cos x, or f(x) tan x using key features.

The graph shown is the graph of which function?

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.