Which question is a statistical question?
o
how many students are there in my class?
o
how long is recess for all the students in my class?
o
how many times was i absent from school last year?
o
how long does it take the students in my class to travel to school?

How long does it take the students in my class to travel to school?

Step-by-step explanation:

A statistical question is one that can be answered by collecting data and where there will be variability in that data.

answer: b.

step-by-step explanation:

the y coordinate for point b is 0, and answer b is the only one with that y coordinate.

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.