Eighteen friends are going to the beach. If each car holds 5 people, how many cars need to be driven to the beach in order for all of the friends to have a ride?

Which expressions are equivalent to k/2 choose 2 answers: a k-2 b 2/k c 1/2k d k/2 e k+k

The legs of a right triangle measure 6 meters and 8 meters. what is the length of the hypotonuse.

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).