s2013731 s2013731 27-03-2024 Mathematics contestada -2 ( 8c + 11 ) 7 ( 2v + 1 ) -3 ( 4c - 5 ) 7 ( 5 - 2r ) -2 ( 5k + 1 ) 1/2 ( 8v - 10 ) 3/4 ( 16m + 4 ) 7/3 ( 6c - 12 )
