contestada

37 = 78
=
=
=
=
OB
OA. () ° = 73.73.75 = 7.(1 +3 + ) = 7.5 = 7.1 = 7
O B. (73) – 73.78.7) = 7.7) = 3-1.7 = 1.7 = 7
OC (-1) = 73.78.7= 73+3+= 78 = 72 = 7
OD. (-)' = 78.78.74 = 73.3.1 = 78 = 72 = 7
O
=
=

37 78 OB OA 737375 71 3 75 71 7 O B 73 73787 77 317 17 7 OC 1 73787 733 78 72 7 OD 787874 7331 78 72 7 O class=