as general arts student will i be allowed to study law with my grades b3 english,b3 science,b2 maths,b3 crs,b3 govt,c4econs

will i be allowed to study law with my grades b3 English,b3 science,b2 maths,b3 C.r.s,b3 govt,c4econsmics
can i also study center for migration with this same grade or political and Economicss general arts student making a total of aggregate 18