Based on the principles of buoyancy, write an expression for the location of the waterline on the hull as a function of the weight of the boat, assuming the boat is stable and the mast is verticle g

The weight of the boat translates to a volume of water displaced. When this volume of displaced water is less than the volume of the hull, the boat will float.

(weight (boat) x density (water)) / Total volume of the hull = percentage of hull submerged, i. e waterline