help? (the last part of it “what is rhe shortest name lengths” is what i need help) :) (i mark brainlist)

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 sum of two numbers is 12 and their difference is 18 what are the two numbers

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1