(Geometry) can someone help me please

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a.p.

My hour hand points between the 8 and the 9 in 35 minutes it will be the next hour. what time is it ?

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