(Solved): In a second contest, the three displacements given are 90.3 m , 22.0 west of north; 15.9 ...

In a second contest, the three displacements given are 90.3 m , 22.0 ∘ west of north; 15.9 m straight north; and 80.7 m , 44.0 ∘ south of east. What magnitude does the winner calculate for the displacement to find the keys to the Porsche?