Find the sum of the three expressions and choose the correct answer. -2u3v + 5uv - 1

7u3v - 2u2v2

5u2v2 - uv + 6

5 u3v + 3 u2v2 + 4 uv + 5
5 u3v - 3 u2v2 + 4 uv - 5
-5 u3v - 3 u2v2 + 4 uv + 7

i think that you should ask google for the answer to that problem because if we don't know it google does

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.