Help me, help me please

Alake near the arctic circle is covered by a sheet of ice during the cold winter months. when spring arrives, the ice starts to melt. s(t) models the ice sheet's thickness (in meters) as a function of time tt (in weeks). s(t)=-0.25t+4

How many square centimeters of wrapping paper will be used to wrap the shoe box?

Write the point slope form of the equation of the line passing through the points (-5, 6) and (0.1).