Use expression editor forsolution
Allow terms with degree > 1 to be defined without using a hash
Merge remote-tracking branch 'upstream/master' into sim-rat-exp-1
Merge remote-tracking branch 'upstream/master' into sim-rat-exp-1
Merge remote-tracking branch 'origin/master' into sim-rat-exp-1
Use expression editor
Volume with unit cubes 2
Volume 3
Volume 3 height exercise
use localized decimals
Change wording to avoid best fit
Add new exercise type with non-linear trends
use localized decimal
correct hint, fix #82420
localization, fix #81302

* don't calculate with localized decimals
* don't use localized decimal in solution
* show localized decimals
localization, fix #81850

* don't use localized decimal in solution
* show localized decimals
* removed unused variable
Remove reference to non-existent divideByTerm function
Add more rational expression division tests
Fix typo
fix #83200