Find the indicated sum or difference 9-12: 9. 5+7 10. 7+(-9) 11. -5+20 12. -(-11)-7
1 answer:
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Notice, it has a square base, so the base or bottom of the rectangular prism, is a square, that means, length = width = x, length and width both have the same value, let's say "x", check the picture below
Answer:
Option C
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