## Intermediate Algebra for College Students (7th Edition)

The distance between Venus and the sun is $0.7$ astronomical unit.
The given formula is $d=\frac{3(2^{n-2})+4}{10}$ Where, $d$ is measured in astronomical units and $n$ is the number of planet from the sun. Sustitute $n=2$ into the formula. $d=\frac{3(2^{2-2})+4}{10}$ $d=\frac{3(2^{0})+4}{10}$ $d=\frac{3 \cdot 1+4}{10}$ $d=\frac{ 3+4}{10}$ $d=\frac{ 7}{10}$ $d=0.7$.