1) Oque é cambio, taxa de cambio e as casas de cambio?. 2) existem dois tipos principais de cambio: o turismo e o comercial. Diferencie cada um deles

Twelve less than a number is at most 20

Which two undefined geometric terms always describe figures with no beginning or end?

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).