Let n = 5. what is the value of the expression 9 n 2 −2−n ? enter your answer in the box.

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

Select the sequences that are geometric.

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?