-15 + n = -9
step by step pls

How can we find the measure of an exterior angle if we know the measurement of an interior angle

Asap describe the transformations required to obtain the graph of the function f(x) from the graph of the function g(x). f(x)=-5.8sin x. g(x)=sin x. a: vertical stretch by a factor of 5.8, reflection across y-axis. b: vertical stretch by a factor of 5.8,reflection across x-axis. c: horizontal stretch by a factor of 5.8, reflection across x-axis. d: horizontal stretch by a factor of 5.8 reflection across y-axis.

On a piece of paper, graph y< x+1. then determine which answer matches the graph you drew.