Chapter 4, Problem 22PS

Evaluate the value of the following expressions:

$\begin{array}{|l|}\hline \text{a}\text{. floor }\left(\text{9}\text{.5}\right)\hfill \\ \text{b}\text{. floor }\left(-\text{2}\text{.4}\right)\hfill \\ \text{c}\text{. floor }\left(-\text{3}\text{.4}\right)\hfill \\ \text{d}\text{. ceil }\left(\text{9}\text{.5}\right)\hfill \\ \text{e}\text{. ceil }\left(-\text{2}\text{.4}\right)\hfill \\ \text{f}\text{. ceil }\left(-\text{3}\text{.4 }\right)\hfill \\ \hline\end{array}$