Getting late and drawing a blank. What are the three ways to find K?

CAPM: k = Rf + B(Rm-Rf) what else? maybe by using the DDM formula? P = D1/(k-g) and just rearrange to find k? what elseā¦ maybe from the WACC formula? again, rearrange to find k?

Bond + YP

there it is thanks guys. It was the capm, re-arranging the ddm, and bond +yp.

gordon growth d1/p0 + g