witch is true?a.5+5+5=100000.b.1+2+3=123.c.15+15-10=20., a, b, c, , parallel line, 15, 2, perpendicular, my mom, mam, , 2, 12, 21, 3, how are you doing today, good, very good, bad, nomal, very bad, very nomal, 1+1+1+100+1+1+2+1=, i do not know, 108, 2001, 110, parallel, , , , 1/1=, 2, 3, 4, 1, , wer, parallel, perpendicular, 5⨉5=, 55, 25, 45, 45+45=, 4545, 90, 9000000000000000000, 3, 3, 3, 5, 5, 5, 44, 4, 4, 44, 4, 4, 44, 4, 4, 444, 4, 44, 44, 4, 4, 3333, 33, 33, 33, 3, 3, 99+1=, 1000, 10, 10000, 100, 1000000, 1.

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