Answer:
The relation between the same side interior angles is determined by the same side interior angle theorem. The theorem for the "same side interior angle theorem" states: If a transversal intersects two parallel lines, each pair of same-side interior angles are supplementary (their sum is 180°).
how do you want it to be simplified? my fraction, decimal or percent? because if you’re asking if the fraction can be simplified any smaller it can’t but if your asking for decimal or percent let me know and i could try to help you out
Answer:
12,167 ft^3
Step-by-step explanation:
To find the volume of something, you simply multiply the length times width times height. The equation looks like this; 
A cube has equal measures of all sides-
23*23*23=12167
or

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X=-3
because
-4x=21-9
-4x= 12 divide both sides
x=-3