matematika tolong yah no 9,10,11

9.
0,89=0,89
7/8=0,875
88%=0,88
1.1/3=1,33
Jadi, 1.1/3 ; 0,89 ; 88% ; 7/8 (C)

10.
1.1/4-0,75
=5/4-75/100
=(125-75)/100
=50/100
=1/2 (C)

11.
n=1.5/8*2.1/5*5/13
n=13/8*11/5*5/13
n=1/8*11
n=11/8
n=1 3/8 (B)

9.0,89=89%
7/8=87,5%
88%
1 1/3=133,3%
=1 1/3;0,89;88%;7/8
10.0,75=75/100=3/4
1 1/4-3/4=1 -2/4=2/4=1/2
11.1 5/8*2 1/5*5/13=13/8*11/5*5/13=11/8=1 3/8