I need help with Math pleaseee

Polygons efgh and e′f′g′h′ are shown on the coordinate grid: what set of transformations is performed on efgh to form e′f′g′h′? a. a translation 1 unit to the left followed by a 90-degree counterclockwise rotation about the origin b. a translation 1 unit to the right followed by a 90-degree counterclockwise rotation about the origin c. a 90-degree clockwise rotation about the origin followed by a translation 2 units to the right d. a 90-degree clockwise rotation about the origin followed by a translation 2 units to the left

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

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?