Aregular octagon rotates 360° about its center. how many times does the image of the octagon coincide with the preimage during the rotation?

Give all possible names for each angle shown.calculation tip: in angle abc, b is the vertex.

Yuri, sam and dani had the same math homework last night, but none of them finished it. yuri finished 3/8 of her homework, sam finished 4/6 of her homework and dani finished 1/2. who finished the most math homework? who finished the least amount?

15 point ! ~ see if you know the answer to both you!