Question 1023909
<i>...the square of time T required for a planet to complete one orbit around the sun (the period, that is, the length of one planetary year) is directly proportional to the cube of average distance d of the planet from the sun. </i>


The phrase, "is directly proportional to..." becomes    {{{something=k*someother}}}.


{{{highlight(T^2=k*d^3)}}}


For the rest, solve for k and use the data to evaluate k and answer the last question.