The variation of acceleration due to gravity $g$ with distance $d$ from the centre of the earth is best represented by $(R$ is Earth's radius) 

Starting from the centre of the earth having radius $R$,  the variation of $g$ (acceleration due to gravity) is shown by  

Kepler's third law states that the square of the period of revolution ($T$) of a planet around the sun, is proportional to the third power of the average distance $r$ between sun and planet i.e., $T^2=K{r}^3$ here $K$ is constant.

If the masses of sun and planet are $M$ and $m$ respectively then as per Newton's law of gravitation force of attraction between them is
$F=\frac{GMm}{r^2},$here $G$ is gravitational constant. The relation between $G$ and $K$ is described as