You are converting the numbers to a word problem.
1. 5+x = the number five plus x
2. 5-x= the number 5 minus x
3. 5x= five times x
4. 5/x= five divided by x
5. three-fourths of x plus 2
6. two minus three-fourths of x
7. 3 times x plus 10
8. ten times x plus three
Between "my" age and "my" step sisters' age there is 7 years, the range is 7 years
Hope this helps
-GoldenWolfX
B) 19/8 + 28/8
have a great day!