In a junkyard, 3/5 of the vehicles are trucks, and 2/6 of the trucks are black, what fraction of the vehicles in the junkyard or black trucks?​

50 points~ ! i have to turn this in tomarrow

What is the absolute value of -100000000000000?

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).