Please help! This is my last question and I can’t get it... I gave the most points I could. (I will also mark you the brainliest if it works)

14 pointslet x be the seats in the small van and y the seats in the large van. how many seats does the large van have? a company uses two vans to transport worker from a free parking lot to the workplace between 7: 00 and 9: 00a. m. one van has 9 more seats than the other. the smaller van makes two trips every morning while the larger one makes only one trip. the two vans can transport 69 people, maximum. how many seats does the larger van have?

Afamily went out to dinner and their bill was $113.if they want to leave a 19% tip, how much should they leave.

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?