The units that are used <span>in space because metric units are too small would be: The astronomical Unit (A.U)
In space, the unit measurement is often used to measure the distance between planets or between stars.
Since the distance between these objects are very large, using metric units to measure it would be inefficient</span>
Radio telescopes have to be much larger than optical telescopes because the wavelengths of radio waves are so much larger<span> than the wavelengths of visible light.
just search it up on Google . . .</span>
First to subtract by the 3 from the both sides. Then cross out 3 -3 it equals to 0.
(3n+7)
-3 -3
~~~~~~
4
Answer is n=4
