I NEED HELP WITH THIS SIMPLE QUESTION I cant do it and idk why. (YOU CAN SEE THE PICTURE WHEN YOU CLICK THIS) please give an explanation on how you solved it!!!

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

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).