Answer:
Step 3, because the solution should also include all the values for x between the two given values
Step-by-step explanation:
step 1
we have


step 2
The graph in the given problem
step 3
Identify the solution when 
so

using a graphing tool
The solution is the interval -----> [3,5]
see the attached figure
All real numbers greater than or equal to 3 and less than or equal to 5
therefore
The first step in which the student made an error is step 3
Divide everything by 8: 550/8=68.75, 250/8=31.25. The new dimensions are 68.75 inches by 31.25 inches :)
I only got 22-25 done cause its been a long time since ive done these so i don't remember how to do the first two ):
1.) 5
2.) 9
3.) 1/2
4.) 0.5
5.) 1
6.) -8