A painting is purchased for \(\$125\). If its value doubles every \(5\) years, then its value is \(V(t)=125\cdot2^{\frac{t}{5}}\). Find \(V(5)\) and \(V(10)\)
A balloon has the shape of a sphere with a radius of \(3\) inches. Use \(V(r)=\displaystyle\frac{4}{3}\pi r^3\) and \(S(r)=4\pi r^2\) to find the volume and the surface area.