After filling the air in a spherical balloon of radius $7 \mathrm{cm}$ it becomes $14 \mathrm{cm}$. Calculate the ratio of the surface area of the balloon in both conditions.

In figure the object is made of two solids - a cube and a hemisphere. The base of the figure is a cube with edges of $5 \mathrm{cm}$ and the hemisphere fixed on the top has a diameter of $4.2 \mathrm{cm}$. Find the total surface area (in ${\mathrm{cm}}^2$) of the object. (Take $\mathrm{\pi }=\frac{22}{7}$) 

A toy has two parts. One part is cone-shaped and has radius of $5 \mathrm{cm}$. And it is placed on the top of a hemisphere having similar radius. Total height of toy is $17 \mathrm{cm}$. Find the total surface area of the toy?