Respuesta :
6+7 add 7 to the number 6 witch would equal 13
8+4 add 4 to the number 8 witch would equal 12
2+9 add 2 to the number 9 witch would equal 11
8+4 add 4 to the number 8 witch would equal 12
2+9 add 2 to the number 9 witch would equal 11