If f(x) = 3x -2, find f(8) - f(-5)

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

What is the missing constant term in the perfect square that starts with x^2 -20x

Which expression is equivalent to sq-80