Eight out of 10 dentists pefer crest toothpaste. what is the ratio of dentisits who do not perfer crest to those who do

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?

Will gve pints stars and brainliest

Can someone me out here number 4 plz