Todays typical hip implant weighs about 50% less than it did 20 years ago. if an implant weighs about 3lb today how much did it weigh 20 years ago?

How do i do this activity, is appreciated

How do i do this activity, is appreciated

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.