Alyssa is 3 years older than gladys, william is twice as old as alyssa altogether their ages total 89 how old is gladys ?

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)

Answer these questions showing your work plz

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.