NEED HELP ASAP PLEASE

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

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).

Triangle dog was rotated to create triangle d'o'g'. describe the transformation using details and degrees.