In a survey of 1,800 people who owned a certain type of car, 810 said they would buy that type of car again. What percent of the people surveyed said they were satisfied with the car?

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

Florence price's brownies and more sells all types of cookies and pastries. on tuesdays, they markdown all brownies 75% to a sale of $1.50 a dozen. find the selling price and the markdown of a dozen brownies.

X/y + 4y/x divided by x/y - 2y/x explain as in depth as you can how you simplfied the fractions. i don't know where to start on this : /