THank you for help steve with the other one!! :)

My other one is:
The compostition of adipic acid used in the manufacture of Nylon is 49.3%c, 6.9% H and 43.89%O. The molecular mass is known to be 146 amu. What is the molecular formula of adipic acid?

I got C6-H10-O4. DID I DO THIS RIGHT?

I don't know if you did it right or not because you didn't show your work; however, you have the right answer.