The constant is : <span><span>5/2</span></span>
Answer:

Any expression of the form 
I believe you'd need the price values of both adult tickets and child tickets to correctly solve
Tim spends 1/3 each weekday sleeping and 7/24 in school. We can write 1/3 as 8/24 so we have a common denominator. Now we can see that Tim sleeps for 1/24 time of a weekday more then he spends in school.
I hope that's what you meant.
The answer to your question is 7.59 so shes right