c & d(i and ii) please. thanks

(c) Find all points whose binary expansions begin as:(i) .101, (ii) 11001. (d) (i) Show that x = } has the two binary expansions 100 and .011. (ii) Which other points in (0,1) will have two binary erpansions? (c) Find all points whose binary expansions begin as:(i) .101, (ii) 11001. (d) (i) Show that x = } has the two binary expansions 100 and .011. (ii) Which other points in (0,1) will have two binary erpansions