Question: The fourth graders at Whitmore Elementary School voted for their favorite school subjects. Below is a graph that shows the results.
FAVORITE SUBJECTS IN FOURTH GRADE
Number of Students
50
45
40
35
30
25
20
15
10
5
0
Reading
Science
Math
Writing
Subjects
How many students chose science and reading combined? ____________________
How many students voted in all? ____________________
How many more students voted for math than writing?
____________________
1. **State the problem:** We have the number of students who voted for each subject: Reading = $40$, Science = $35$, Math = $45$, Writing = $20$.
2. **Find how many students chose science and reading combined:**
$$40 + 35 = 75$$
3. **Find how many students voted in all:**
Add all votes:
$$40 + 35 + 45 + 20 = 140$$
4. **Find how many more students voted for math than writing:**
$$45 - 20 = 25$$
**Final answers:**
- Science and Reading combined: $75$
- Total students voted: $140$
- More students voted for Math than Writing: $25$