Problem: Add spaces: Firstnotetheinteriorangleofaregularpolygonofnsidesis(π-2π/n).

Spaces added: First note the interior angle of a regular polygon of n sides is (π-2π/n).

Problem: Add spaces: Justseetheinstructionsbelowtolearnhowtoplacehighincomelinksonyourwebsite.

Spaces added: Just see the instructions below to learn how to place high income links on your website.

Problem: Add spaces: Therobustplasticcanhandletemperaturesdownto-40°Candisresistanttosalt.Thebladeedge,ineitherhardplasticorstainlesssteel,hasaperfectangleforshovellingsnow.

Spaces added: The robust plastic can handle temperatures down to -40°C and is resistant to salt. The blade edge, in either hard plastic or stainless steel, has a perfect angle for shovelling snow.

Problem: Add spaces: What,therefore,thewage-labourerappropriatesbymeansofhislabour,merelysufficestoprolongandreproduceabareexistence.

Spaces added:
What, therefore, the wage-labourer appropriates by means of his labour, merely suffices to prolong and reproduce a bare existence.