Need help please and thanks :)

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?

Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28

Which of the following represents the factorization of the trinomial below? x^2+7x-30