1 176÷24=49
49× 1=49 (name)
A: There are 49 teachers.
(2)8+ 17+ 16+9=50
Zhao Jia: 100×8/50= 16 (yuan)
Qianjia: 100× 17/50=34 (yuan)
Sun Jia: 100× 16/50=32 (yuan)
Li family: 100×9/50= 18 (yuan)
(3)24×7= 168 (cm)
So c is a criminal.