Combine the like terms to create an equivalent expression. k + k A 2k B k C 3 plz help i am in 6 grade

You receive 15% of the profit from a car wash how much money do you receive from a profit of 300

Which of the following graphs could represent a quartic 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).