Answer: 8 adult tickets 5 children tickets
5x8=40(8 adult tickets cost 5 dollars each so it would be 40)
3x5=15(5 children tickets cost 3 dollars each so it would be 15)
Adult ticket plus children ticket
40$+15$=55$
While 8 tickets plus 5 tickets equal 13 tickets in all!
Hope that helped
You will find the answers with their justification on the file attached.
It seems to me that the answer should be 2. Rhythm and meter provide a beat.