Answer:

Step-by-step explanation:

Multiply by 10 on both sides,

so 
Answer:
1/5
Step-by-step explanation:
1/9=0.11
1/3=0.33
1/5=0.20
I don't really know the answer but I tried.
1. 641
2. 65.4
3. 21+7=28 total marbles. The greatest number of groups would be 7, with 1 blue and 3 white.
4. 80% of 685= .80 x 685= 548 students.
Two vertical angles are never adjacent.
I hope this helps :)
Answer:
multiply 8 x 4=22
Step-by-step explanation: