Q1 hint: Hfr gur pyvdhr ceboyrz. Nqq fbzr abqrf naq rqtrf gb gur tencu fb gung gur arj tencu unf na nyzbfg pyvdhr bs fbzr fvmr vs gur bevtvany tencu unq n pyvdhr bs fbzr bgure fvmr.

Q2 hint: Hfr gur pyvdhr ceboyrz. Guvax nobhg gur nqwnprapl zngevk ercerfragngvba naq nfx lbhefrys jung n pyvdhr ybbxf yvxr va gung ercerfragngvba.

Q3 hint: Hfr iregrk pbire. Gur vf n irel rnfl erqhpgvba orpnhfr lbh qb abg unir gb qb zhpu rkprcg rkcynva ubj iregrk pbire vf n fcrpvny pnfr bs cnegl vaivgngvba.