Solve for y: 1/3y+7≥12
a) y ≤ 5/3
b) y ≥ 15
c) y ≤ 5
d) y ≥ 57

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