Ariah is walking on a boat that is sailing in the ocean. At a certain point the boat encounters a current.
Ariah walks at a speed of
\[5\,\dfrac{\text{km}}{\text{h}}\] in the westward direction, relative to the boat.
The boat is sailing at a speed of
\[35\,\dfrac{\text{km}}{\text{h}}\] in the northward direction.
The current pulls the boat at a speed of
\[12\,\dfrac{\text{km}}{\text{h}}\] in the eastward direction and at a speed of
\[7\,\dfrac{\text{km}}{\text{h}}\] in the northward direction.
What is Ariah's absolute speed after the boat meets the current?