Final answer:
To apply Top and Double Bottom borders in a spreadsheet, select the cells and choose the corresponding borders from the toolbar options. The reference to figures and arrows likely involves data interpretation or mathematics, which are not related to the spreadsheet formatting instructions.
Step-by-step explanation:
The instruction provided suggests that you are working within a spreadsheet or data-related application. To apply the Top and Double Bottom borders to selected cells, you should first highlight the cells where you want these borders to be applied. Then, depending on the program you are using (such as Microsoft Excel), you can go to the toolbar under the 'borders' option and select 'Top Border' and 'Double Bottom Border'. By doing so, you will add a single line to the top of the selected cells and a double line at the bottom.
As for the reference to Figure 13.4 and Figure 13.6 and the arrows and dashed line, this seems to be related to a different context, possibly involving data interpretation or mathematics. Without more information about these figures or the context they are used in, it's not possible to properly connect them to the given instruction.