Answer *The expressions are not equivalent because Ella would get different results when substituting different numbers for f.
（But I'm not sure.
The answer is 4
Eyeheheheh
Answer is D
Explain 729:33(-2)
(X * y) + 9
Xy + 9
you can't reduce it further
~Zoe
1: 8 faces and 9 with the base 9 vertices and 16 edges
2: 3 faces and 5 with the bases 6 vertices and 9 edges
3: 3 faces and 4 with the base 4 vertices and 6 edges
