question: if the sequence of odd numbers (1, 3, 5, 7 ) is cumulatively summed the result is the sequence (1, 4, 9, 16, ), the squared integers.
Capitalize this past sentence correctly.
A: If the sequence of odd numbers (1, 3, 5, 7 ) is cumulatively summed the result is the sequence (1, 4, 9, 16, ), the squared integers.

question: cleaning properties affect life-span and economy.
Capitalize this past sentence correctly.
A: Cleaning properties affect life-span and economy.

question: to begin your free file analysis, simply drag-and-drop your q99 file inside the dotted lines below, or click "browse my computer" and select your file.
Capitalize this past sentence correctly.
A: To begin your free file analysis, simply drag-and-drop your Q99 file inside the dotted lines below, or click "Browse My Computer" and select your file.