# Interpret Nonlinear Expressions - Harder

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This video is for the redesigned SAT which is for you if you are taking the SAT in March 2016 and beyond.

Interpret Nonlinear Expressions - Harder Example
The following equation shows Kepler's 3rd law of planetary motion. It relates the time, t (in days), that a planet takes to revolve once around our sun to the distance, d (in kilometers), of that planet from the sun.
t2 = 3.98•10-20•d3
Mars is approximately 4 times as distant from the sun as Mercury is.
About how many times longer would Mars's revolution time be than for Mercury? Round your answer to the nearest whole number.
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