Evaluate $\lceil 8.8 \rceil+\lceil -8.8 \rceil$.
I know that $\lceil x \rceil$ is the smallest integer that is greater than or equal to x, also known as the ceiling function. So, $\lceil 8.8 \rceil$ is the smallest integer that is greater than or equal to 8.8, which is 9. Similarly, $\lceil -8.8 \rceil$ is the smallest integer that is greater than or equal to -8.8, which is -8. Therefore, $\lceil 8.8 \rceil+\lceil -8.8 \rceil = 9 + (-8) = 1$. 