Please capitalize where necessary: you have to invent maths to get a solution to a problem but, in the process, i often discover a whole lot more which i didn't expect.
A: You have to invent maths to get a solution to a problem but, in the process, I often discover a whole lot more which I didn't expect.
Q: our road to credibility, is among other things, through our high level of technical knowledge, a solid long-term relationship with both resellers and end users and last but not least serious and credible marketing actities that support both our vendors and the technologies we carry.

A: Our road to credibility, is among other things, through our high level of technical knowledge, a solid long-term relationship with both resellers and end users and last but not least serious and credible marketing actities that support both our vendors and the technologies we carry.
Q: tip: incorrect flo file association errors can be a symptom of other underlying issues within your windows operating system.
A: Tip: Incorrect FLO file association errors can be a symptom of other underlying issues within your Windows operating system.
Problem: this product was added to our catalog on sunday 10 june, 2007.
Can you repeat this sentence, but capitalize it?
Answer: This product was added to our catalog on Sunday 10 June, 2007.
Text: your spacious room is complete with air conditioning, satellite tv, and a private balcony.

Correct capitalization: Your spacious room is complete with air conditioning, satellite TV, and a private balcony.
Please capitalize where necessary: however, roughly 500 days before the deadline, there is no doubt that the goals have had measurable and life-changing effects on billions of people: since 1990, half of the world’s extremely poor people have been lifted out of poverty, 2.1 billion people have gained access to clean water, the aids epidemic and malaria have been curbed, 90% of children in developing countries start school and just as many girls as boys.
A:
However, roughly 500 days before the deadline, there is no doubt that the goals have had measurable and life-changing effects on billions of people: since 1990, half of the world’s extremely poor people have been lifted out of poverty, 2.1 billion people have gained access to clean water, the AIDS epidemic and malaria have been curbed, 90% of children in developing countries start school and just as many girls as boys.