Can someone help me on number 24?

Answer:
x must be less than or equal to 5 hours
Step-by-step explanation:
24. C= 2(x-2) +3
C must be less than 10
10> 2(x-2) +3
Distribute the 2
10> 2x-4+3
Combine like terms
10> 2x-1
Add 1 to each side
10+1> 2x-1+1
11> 2x
Divide each side by 2
11/2 >2x/2
5.5 >x
We can only have whole hours
x must be less than or equal to 5 hours