What is the degree angle of sircle

To decrease an amount by 16% what single multiplier would you use

The function y= x - 4x+ 5 approximates the height, y, of a bird, and its horizontal distance, x, as it flies from one fence post to another. all distances are in feet. complete the square to find and interpret the extreme value (vertex). select two answers: one extreme value and one interpretation.

What is the maximum of the sinusoidal function