Pre calculus hotfix

## Precalculus Hotfixes (1 of 3)

Group of updates to PreCalculus templates reflecting fixes updated to various elements.  These include the following:

- Adjustment of font for try-it answer.  Font needs to be smaller.  Adjustment done to spacing as well for best lineup
- Inserted 3/4 and 1/2 page art standardized widths received from Words and Numbers
- Removal of second rendering of URL in link targets (URL in parentheses) as design is calling for URL text to be link and no repeat