Find the perimeter and area of the rectangle

Perimeter$=\_\_\_\_\_\_\_$ Area$=\_\_\_\_\_\_\_\_$

If the breadth is doubled, the area of the figure is:

Mini had yoga class every $6^{\mathrm{th}}$ day and tennis every $8^{\mathrm{th}}$ day. She began this program on January $1^{\mathrm{st}}$ when she had both yoga and tennis. If January $k^{\mathrm{th}}$ is the next date on which she would do yoga and play tennis on the same day, then write the value of $k$.

In the given figure, find the value of $x$.