What is the final transformation in the composition of transformations that maps pre-image GHJK to image G’H”J”K”?

Two blends of tea are mixed to make a blend that will be sold at the fair. black tea sells for $2.20 per pound and orange pekoe tea sells for $3.00 per pound. how much of each should be used to obtain a 4lb blend selling for $2.50 per pound?

The graph shown is the graph of which function?

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?