Ten experts rated a newly developed chocolate chip cookie on a scale of 1 to 50. their ratings were: 34, 35, 41, 28, 26, 29, 32, 36, 38, and 40. what is the mean deviation of the ratings?

You will get 25 points an image of a rectangular prism is shown below: part a: a cross section of the prism is cut with a plane parallel to the base. what is the name of the shape created by the cross section? explain your answer. (5 points) part b: if a cross section of the prism is cut perpendicular to the base, what would be the shape of the resulting cross section? explain your answer. (5 points)

Icould really use some with this question.

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class