Does anyone know the answers to solving quadratics unit test 1-18! Will mark brainlest!

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

M.xyz =radians. covert this radian measure to its equivalent measure in degrees.

Which best describes a central bank's primary goals? limiting inflation and reducing unemployment reducing unemployment and maintaining cash flow controlling stagflation and reducing unemployment managing credit and ensuring the money supply's liquidity