Write down the 3rd term in the sequence given by: T(n) = 2n² + n

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.

4. a single woman uses an online cash flow calculator which reveals a cash flow of 203. what does this mean?

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).