Find value of x (triangle)

please help, im in a test !

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.

For which pair of functions is (gof)(a)=|a|-2?

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?