A company sold 3,000 computers in one month, but 12 were returned. If 3,500 were sold the next month, the company would expect 14 to be returned. What is a valid proportion to represent the problem? StartFraction 3,000 over 12 EndFraction = StartFraction 14 over 3,500 EndFraction StartFraction 12 over 3,000 EndFraction = StartFraction 3,500 over 14 EndFraction StartFraction 3,500 over 3,000 EndFraction = StartFraction 12 over 14 EndFraction StartFraction 3,000 over 12 EndFraction = StartFraction 3,500 over 14 EndFraction