For a wildlife study, 80 foxes were tagged and released. Later, researchers counted 880 foxes, 32 of which had tags. To the nearest whole number, what is the best estimate for the fox population?

Amass weighing 16 pounds stretches a spring 8/3 feet. the mass is initially released from rest from a point 2 feet below the equilibrium position, and the subsequent motion takes place in a medium that offers a damping force that is numerically equal to 1/2 the instantaneous velocity. find the equation of motion if the mass is driven by an external force equal to f(t)=cos(2t).