In a fraternity with 31 ​members, 18 take​ mathematics, 5 take both mathematics and chemistry ​, and 8 take neither mathematics nor chemistry . How many take chemistry but not​ mathematics?

Geometry: determine whether segment mn is parallel to segment kl. justify your answer. jm 6 mk 3 jn 8 nl 4

Suppose i pick a jelly bean at random from a box containing one red and eleven blue ones. i record the color and put the jelly bean back in the box. if i do this three times, what is the probability of getting a blue jelly bean each time? (round your answer to three decimal places.)

The area of a circle is equal to 1 dm². find the radius of the circle.