Place the compass at one point and extend it halfway through the segment and draw an arc. Then use the same setting on the compass to draw another arc from point B. Then, use the ruler and the pencil to draw a line through the two points of intersection of the arcs. that is the perpendicular bisector. Hope this helps!
11 and 12.
the square of 11 is 121 and the square of 12 is 144 and because 140 is between 121 and 144, 11 and 12 are the correct answer.
63 because 3+4+2=9 and 7×9=63 so grace used 63 flowers in all
