The answer is J
The rides she wants to ride cost 4+6+3 tickets so that goes on one side. She already has 7 tickets so you need to know 7 plus what will get her on those rides so those go on the other side. So you have:
7+t=4+6+3
Then you solve for t
7+t=13
t=13-7=6
Hope that helps.
Correct answer would be C
24x
100 + 8x
If you plug in 6.25 for X in both equations, they both equal 150 so in 6.25 hours they will have the same amount.