K 6xo 4xºJ L What is the measure of KLM?

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line

Ineed the solution to this problem and the steps.

Find the volume of the wedge cut from the first octant by the cylinder z=12-3y^2 and the plane x+y=2.