A solution which satisfies the original radical equation is called

Aregular hexagon rotates counterclockwise about its center. it turns through angles greater than 0° and less than or equal to 360°. at how many different angles will the hexagon map onto itself?

The table respent two linear functions the equation respented by the first tables is given

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.