Determine the reaction at the smooth support C and pinned support A

[@usermbark]

Thanks!
But there is a mistake at Moment A, the Cy distanice should be:
Cy(5 + 3cos30)
By the way you write the write answer it is 11.845 kN but by your equation it should be 20 kN.

[@DavidVision]

Glad you found out the error 👏🏼
Hope you learn some.