Davies knows that the area of his square-shaped bag is 81 feet^2. what is the length of any side of the bag?

Ill mark the brainliest if you me with the these three questions 7,8,9

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11

Clarence wants to buy a new car. he finds an ad for a car that costs 27,200 dollars. suppose his local sales tax is 7%. -how much would he have to pay? -what is the cost of the car including tax? -if clarence has 29,864 saved, can he pay cash to buy the car?