Cost of perfume in Italy was 50 euro. The same perfume in London was £42. Exchange rate =£1 = 1.15= euro. What id the difference between the cost of the oerfume in Italy and the cost in London. What is the answer in pounds (£)

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).