Acircle with a radius of 1 unit and center c at (-2,1) is reflected across the x-axis. what are the coordinates of c

Which expression is equivalent to (9x - 3 1/ + 1 3/8)

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?