QUESTION: Fix punctuation: Europeans and Americans of European descent justified slavery with theories of the inferiority of other races and kept these people in subjugation with rules and laws
ANS: Europeans and Americans of European descent justified slavery with theories of the inferiority of other races and kept these people in subjugation with rules and laws.

QUESTION: Fix punctuation: Next youll have to choose the option of payment
ANS: Next you'll have to choose the option of payment.

QUESTION: Fix punctuation: Botany Peacock flower Poinciana especially Royal poinciana a showy leguminous tree Delonix regia of Madagascar having racemes of brilliant scarlet or orange flowers and bearing a flat woody pod which often grows to a length of 60 cm 2 English feet ft
ANS: Botany: Peacock flower: Poinciana (especially Royal poinciana); a showy leguminous tree, Delonix regia, of Madagascar, having racemes of brilliant scarlet or orange flowers and bearing a flat, woody pod which often grows to a length of 60 cm (2 English feet (ft.)).

QUESTION: Fix punctuation: In a chance meeting with his exbrotherVernon offers him that the allegedly best solution and soon a new legal designer drug called NZT It stimulates so far only to be 20 occupied the brain and brings benefits which were so not possible before Eddie overcomes his writers block and rises to unprecedented career heights Money Women Power
ANS:
In a chance meeting with his ex-brother-Vernon offers him that the allegedly best solution and soon a new legal designer drug called NZT. It stimulates so far only to be 20% occupied the brain and brings benefits, which were so not possible before. Eddie overcomes his writer's block and rises to unprecedented career heights. Money, Women, Power.