Answer:
1.12/30 which is equals to 2/5
2.9 more students
3.171*1.50 =$25.65
Step-by-step explanation:
For a question like this, all you have to do is remember that a percentage is simply a fraction expressed as a decimal. So, all we have to do is:

, and then multiply our decimal answer by 100 to get the percentage:

= 0.34
0.34 x 100 = 34
Therefore 34% of the students walk to school.
I hope this helped and remember to please try and understand the maths that got the answer, not just writing the answer down :))
Remember that parentheses come first. Follow PEMDAS
Think you need to add everything up