Solve compund inequality
-3< 2x-1< 5

If a baby uses 15 diapers in 2 days, how many diapers will the baby use in a year?

What is the period of the sinusoidal function ?

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).