Answer:
the second and thrid one :)
Step-by-step explanation:
The solution to the system is (90,40)....x = adults and y = child's...so x = 90 (there were 90 adult tickers) and y = 40 (there were 40 child tickets)...u already had the answer right in front of you
Answer: None of the above
Step-by-step explanation:
Given
Now, integrating both sides