How many games did you bowl? does this question a statistical question. and why

Which simplifys to a+ b? a-(1-b)+1 -(1-a)-b+1 (a--1) -1)+1

Thelime contains the point(-3,0) and parallel x-3y=3( show all work)

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