1. Class width:
The class width is given by the following expression:

The number of intervals are: 4
And the range is:

Replacing:

A) The class width is 74 (rounding to the smallest value).
2. Number of team attempted from 360 to 434:
B) The number of teams are: 4
3. According to the histogram, what is the total number of teams?
The total number of teams is given by:

C) 23.
Answer: 0.75
Step-by-step explanation:
Answer:
See Explanation
Step-by-step explanation:
Given

Required
Make the variable in bracket the subject
From the given expression, none of the variables (m and x) are in brackets.
So, I will solve for m and then solve for x
Solving for m:

Subtract 2x from both sides

Divide both sides by x

Solving for x:

Factorize

Divide both sides by m + 2

I think this question is for you to answer it with your own opinion, think about it and just answer it with what you think :)