A regular polygon is drawn in a circle so that each vertex is on the circle and is connected to the center by a radius. Each
of the central angles has a measure of 40°. How many sides does the polygon have?
O 8
09
O 10
O 12

The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!